Answer:
30%
Step-by-step explanation:
Given:
Every morning he starts with 150 tomatoes.
On Sunday Austin sells 45 of the 150 tomatoes.
Question asked:
What percent of the tomatoes he sold ?
Solution:
As Austin sells 45 tomatoes out of 150 tomatoes, we will find percent of the tomatoes he sold by using :
Percent of the tomatoes he sold = Number of tomatoes he sold divided by total number of tomatoes he starts with.
[tex]Percentage =\frac{45}{150} \times100\\[/tex]
[tex]=\frac{4500}{150} \\ = 30[/tex]
Therefore, 30% of the tomatoes he sold on Sunday.
the answer is 30%
step by step problem
Answer
What is the correct answer to number 9? Please explain step by step.
Answer:
The answer to your question is Momentum = [tex]\frac{(x + 2)^{2}}{x - 3}[/tex]
Step-by-step explanation:
Data
mass = [tex]\frac{x^{2}+ 4x + 4 }{x^{2}- 9}[/tex]
velocity = [tex]\frac{x^{2}+ 5x + 6}{x + 2}[/tex]
Formula
Momentum = mass x velocity
Substitution
Momentum = [tex]\frac{x^{2}+ 4x + 4}{x^{2}- 9} \frac{x^{2} + 5x + 6}{x + 2}[/tex]
Factor The first numerator is a perfect square trinomial and the second one is a trinomial of the form x² + bx + c.
Momentum = [tex]\frac{(x + 2)^{2}}{(x - 3)(x + 3)} \frac{(x + 2)(x + 3)}{x + 2}[/tex]
Simplify and result
Momentum = [tex]\frac{(x + 2)^{2}}{x - 3}[/tex] or [tex]\frac{x^{2} + 4x + 4}{x - 3}[/tex]
We sample the performance of each step, and find that each of them operates correctly about 95% of the time. What is the probability that a customer who visits three times will find our service satisfactory on all 3 visits?
Answer:
85%
Step-by-step explanation:
The probability of finding our satisfactory service in the three visits in a row would be the multiplication of the probability of each event.
The event is always the same. 95% of the service will be satisfactory. That is a probability of 95/100
Then the final probability would be:
(95/100) * (95/100) * (95/100) = 0.85
In other words, the probability that a customer who visits three times will find our service satisfactory is 85%
An ABA standard basketball can have a diameter of up to 25cm how much space is there for air inside a standard basketball
Answer:
[tex]8181.23 \ cm^3[/tex]
Step-by-step explanation:
-A standard basketball has a spherical shape.
-Given the ball has a diameter of 25cm.
-The space available for air is equivalent to the ball's volume and is calculated as:
[tex]V=\frac{4}{3}\pi r^3, D=25\\\\=\frac{4}{3}\pi (D/2)^3\\\\\frac{4}{3}\pi (25/2)^3\\\\=8181.23\ cm^3[/tex]
Hence, the space available for air is [tex]8181.23 \ cm^3[/tex]
A friend tells you to apply for a sales job at a certain company because the mean income of salespeople last year was $47,500. Last year, 6 salespeople earned $33,000, 3 earned $46,000, 2 earned $42,000 and 1 earned $150,000. Would you apply for the job based on what your friend says? Explain in reference to the 3 measures of center.
Answer:
it depends on if i think i could succeed in tha job
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
Mean is not a good measure of the centre because 150,000 is an outlier
Mode is $33,000
Median is $39,500
[(33000+46000)/2 = 39500]
Invest $6,300 in two different accounts the first account paid 11% the second account paid 6% in interest at the end of the year he had earned $643 in interest how much was in each account
Answer: he invested $5300 at 11% and $1000 at 6%
Step-by-step explanation:
Let x represent the amount which he invested in the first account paying 11% interest.
Let y represent the amount which he invested in the second account paying 6% interest.
He Invest $6,300 in two different accounts the first account paid 11% the second account paid 6% in interest. This means that
x + y = 6300
The formula for determining simple interest is expressed as
I = PRT/100
Considering the first account paying 11% interest,
P = $x
T = 1 year
R = 11℅
I = (x × 11 × 1)/100 = 0.11x
Considering the second account paying 6% interest,
P = $y
T = 1 year
R = 6℅
I = (y × 6 × 1)/100 = 0.06y
At the end of the year, he had earned $643 in interest , it means that
0.11x + 0.06y = 643 - - - - - - - - - -1
Substituting x = 6300 - y into equation 1, it becomes
0.11(6300 - y) + 0.06y = 643
693 - 0.11y + 0.06y = 643
- 0.11y + 0.06y = 643 - 693
- 0.05y = - 50
y = - 50/ - 0.05
y = 1000
x = 6300 - y = 6300 - 1000
x = 5300
The value of John's baseball card collection decreases exponentially over time, and the value of his silver collection increases exponentially over time. If the value of John's two collections combined t years from now is given by the function V = 500(1.05)2t + 600(0.95)t, which statement must be true?
The value of John's silver collection changes at a faster rate than the value of John's baseball card collection.
What is an exponential function?An exponential function is defined as a function whose value is a constant raised to the power of an argument is called an exponential function.
It is a relation of the form y = aˣ in mathematics, where x is the independent variable
The exponential function is given in the question
V = 500(1.05)^2t + 600(0.95)^t
Every 6 months, t = 2t
The value of John's silver collection changes = 500(1.05)²ˣ⁶ = 897.928
The value of baseball card collection = 600(0.95)⁶ = 441.055
Thus, the value of John's silver collection changes at a faster rate than the value of John's baseball card collection.
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The question seems to be incomplete the correct question would be
The value of John's baseball card collection decreases exponentially over time, and the value of his silver collection increases exponentially over time. If the value of John's two collections combined t years from now is given by the function V = 500(1.05)^2t + 600(0.95)^t, which statement must be true?
A) John's silver collection is more valuable currency than his baseball collection.
B) The value of John's silver collection changes at a faster rate than the value of John's baseball card collection.
C) John's baseball card collection decreases in value by 10% every six months.
D) The total value of the two collections remains constant over time.
Most major airlines allow passengers to carry two pieces of luggage (of a certain maximum size) onto the plane. However, their studies show that the more carry-on baggage passengers have, the longer it takes to unload and load passengers. One regional airline is considering changing its policy to allow only one carry-on per passenger. Before doing so, it decided to collect some data. Specifically, a random sample of 1,000 passengers was selected. The passengers were observed, and the number of bags carried on the plane was noted. Out of the 1,000 passengers, 345 had more than one bag.
The domestic version of Boeing's 747 has a capacity for 568 passengers. Determine an interval estimate of the number of passengers that you would expect to carry more than one piece of luggage on the plane. Assume the plane is at its passenger capacity.
a) (171.651, 216.214)
b) (181.514, 208.313)
c) (174.412, 217.218)
d) (179.20, 212.716)
Answer:
d) (179.20, 212.716)
Step-by-step explanation:
1000 : 345
569 : 195.96
Midpoint of (179.20, 212.716) is 195.958 which is the closest to 195.96
Final answer:
The interval estimate for passengers expected to carry more than one piece of luggage on a full Boeing 747 is (179.20, 212.716), calculated using the sample proportion and the standard error for a 95% confidence interval.
Explanation:
To determine an interval estimate of the number of passengers that would be expected to carry more than one piece of luggage on a domestic Boeing 747 with a capacity of 568 passengers, we use the sample proportion of passengers with more than one bag from the given sample, which is 345 out of 1000 passengers. This sample proportion, denoted as p-hat, is 0.345. We will use this proportion to estimate the population proportion in the domestic Boeing 747, assuming the plane is at full capacity.
We can calculate the estimated number of passengers by multiplying the proportion (p-hat) by the capacity of the plane. For a Boeing 747 with 568 passengers, this would be 0.345 * 568. To build an interval estimate, we also need to calculate the standard error (SE) of the proportion which is given by the formula SE = sqrt(p-hat*(1-p-hat)/n), where 'n' is the sample size. With a sample size of 1000, the SE can be calculated and then used to construct the 95% confidence interval using the Z-score for 95% confidence (approximately 1.96).
After calculating the interval estimate, we find that the confidence interval falls within one of the options provided. The correct interval estimate of the number of passengers expected to carry more than one piece of luggage on the plane, assuming it's full, would be (179.20, 212.716), which corresponds to option d.
Solve for xxx. Your answer must be simplified. -30<\dfrac x{-4}−30< −4 x minus, 30, is less than, start fraction, x, divided by, minus, 4, end fraction
Answer:
[tex]x<120[/tex]
Step-by-step explanation:
We have been given an inequality [tex]-30<\frac{x}{-4}[/tex]. We are asked to solve the given inequality.
To solve for x, we will multiply both sides of inequality by negative 4. When we multiply or divide both sides of an inequality, the inequality sign reverses.
[tex]-30\cdot (-4)>\frac{x}{-4}\cdot (-4)[/tex]
[tex]120>x[/tex]
This means that 120 is greater than x or x is less than 120.
[tex]x<120[/tex]
Therefore, our required inequality would be [tex]x<120[/tex].
Final answer:
The solution to the inequality -30 < x / -4 is found by multiplying both sides by -4, which reverses the inequality sign, resulting in the solution x < 120. This demonstrates the manipulation of inequalities, particularly when involving negative multipliers.
Explanation:
The correct interpretation of this question is solving the inequality -30 < x / -4. To solve this inequality, we firstly multiply both sides by -4, remembering that multiplying or dividing by a negative number reverses the inequality sign. Thus, the inequality becomes 120 > x, which means x must be less than 120 for the inequality to hold true.
Therefore, the solution to the given inequality is x < 120. This highlights the importance of carefully handling inequalities, especially when multiplying or dividing by negative numbers, as it requires reversing the inequality sign to maintain the accurate relationship between both sides.
Rachel is collecting donations for the local animal shelter. So far she has collected $245 which is 70% of what she hopes to collect. How much money does Rachel plan to collect for the shelter?
Answer:
Step-by-step explanation:
Answer
She plans to collect 350 dollars
Step-by-step explanation:
Knowing that 245 dollars is equal to only 70% of what Rachel hopes to collect, the equation:
70% * x = 245
where x = money she plans to collect in total, is applicable,
Solving:
70/100 * x = 245,
7/10 * x =245,
7x/10 = 245,
7x = 2450,
x = 350 dollars
A differentiable function f(x,y)f(x,y) has the property that f(2,5)=5f(2,5)=5 and fx(2,5)=−7fx(2,5)=−7 and fy(2,5)=7fy(2,5)=7. Find the equation of the tangent plane at the point on the surface z=f(x,y)z=f(x,y) where x=2x=2, y=5y=5.
Answer:
-7x +7y -z = 16
Step-by-step explanation:
We can define the function ...
F(x, y, z) = f(x, y) -z
and differentiate at the point (x, y, z) = (2, 5, 5) to get ...
fx(2, 5, 5) = -7 . . . . given
fy(2, 5, 5) = 7 . . . . given
fz(2, 5, 5) = -1 . . . . partial derivative of the above equation
Then the equation of the plane can be written as ...
fx(x -2) +fy(y -5) +fz(z -5) = 0
-7(x -2) +7(y -5) -1(z -5) = 0 . . . . . substitute for fx, fy, fz
-7x +14 +7y -35 -z +5 = 0 . . . . . eliminate parentheses
-7x +7y -z = 16 . . . . equation of the tangent plane
The focal points of an ellipse are (12, 0) and (−12, 0), and the point (12, 7) is on the ellipse. Find the points where this curve intersects the coordinate axes.
Answer:
x - ( 16 , 0 ) , ( -16 , 0 )
y - ( 0 , 4√7 ) , ( 0 , -4√7)
Step-by-step explanation:
Solution:
- The sum of the distances from a point on the ellipse to its foci is constant. You have both foci and a point, so you can find the sum of the distances.
-Then you can find the vertices since they are points on the ellipse on the x-axis whose sum of distances to the foci are that value.
- The 7 in y coordinate of (12,7) is the length of semi-latus rectum. Also c is 12:
c^2 = a^2 + b^2
Where, a: x-intercept
b: y-intercept
- The length of semi-latus rectum is given by:
b^2 = 7*a
- Substitute latus rectum expression in the first one we get:
c^2 = a^2 + 7a
a^2 + 7a - 144 = 0
( a - 16 ) * ( a - 9 ) = 0
a = +/- ( 16 )
- The y-intercept we will use latus rectum expression again:
b = +/- √(7*16)
b = +/- 4√7
- The intercepts are:
x - ( 16 , 0 ) , ( -16 , 0 )
y - ( 0 , 4√7 ) , ( 0 , -4√7)
Final answer:
An ellipse is a closed curve where the sum of the distances from any point on the curve to the two foci is constant. To find where this particular ellipse intersects the coordinate axes, we can set y = 0 to find the points of intersection with the x-axis and set x = 0 to find the points of intersection with the y-axis.
Explanation:
An ellipse is a closed curve where the sum of the distances from any point on the curve to the two foci is constant. The focal points of this ellipse are (12, 0) and (-12, 0). We know that the point (12, 7) lies on the ellipse. To find where this curve intersects the coordinate axes, we need to find the points where the ellipse intersects the x-axis and y-axis.
Intersecting the x-axis:
To find the points where the ellipse intersects the x-axis, we set y = 0 and solve for x. In this case, the coordinates of the intersection points will be (x, 0).
Plugging in y = 0 into the equation of the ellipse:
(x - 12)^2 / a^2 + (0 - 0)^2 / b^2 = 1
Simplifying this equation:
(x - 12)^2 / a^2 = 1
Since the ellipse is symmetric about the y-axis, the x-coordinates of the intersection points will have the same absolute value but opposite signs. So, we can solve for a single value of x and then take its negative to find the other intersection point.
(x - 12)^2 / a^2 = 1
x - 12 = a
x = a + 12
The coordinates of the intersection points on the x-axis are (a + 12, 0) and (-a - 12, 0).
Intersecting the y-axis:
To find the points where the ellipse intersects the y-axis, we set x = 0 and solve for y. In this case, the coordinates of the intersection points will be (0, y).
Plugging in x = 0 into the equation of the ellipse:
(0 - 12)^2 / a^2 + (y - 0)^2 / b^2 = 1
Simplifying this equation:
144 / a^2 + y^2 / b^2 = 1
Solving for y:
y^2 / b^2 = 1 - 144 / a^2
y^2 / b^2 = (a^2 - 144) / a^2
y^2 = b^2 * (a^2 - 144) / a^2
y = ± sqrt(b^2 * (a^2 - 144) / a^2)
The coordinates of the intersection points on the y-axis are (0, ± sqrt(b^2 * (a^2 - 144) / a^2)).
To win the carnival game Ring Ding, you must toss a wooden ring onto a grid of rectangles so that it lands without touching any of the grid lines. The ring has a 3-inch diameter, the rectangles are twice as long as they are wide, and the game has been designed so that you have a 28% chance of winning. What are the dimensions of each rectangle
Answer:
5in x 10in
Step-by-step explanation:
Solution:
1. You have to assume that the ring will land on the board and as a result, just focus on one rectangle of the board since they are all the same size.
2. For the ring to land entirely inside the rectangle, the center of the ring needs to be 1.5 inches inside the border (radius is 1.5 inches), so the "winning rectangle" will have dimensions:
L = (x - 2(1.5)) = x - 3
w = (2x - 2(1.5)) = 2x-3.
3. Now, we will set up and solve our geometric probability equation. The winning rectangle's area of (x-3)*(2x-3) divided by the total rectangle's area of x*(2x) = 28%
(2x-3)*(x-3)/(2x^2) = .28
2x^2 - 9x + 9 = .56x^2
1.44x^2 - 9x + 9 = 0
4 . Now you can plug that in the quadratic formula and get the solutions x = 1.25 or 5. However, it cannot by 1.25 because that is too small of a dimension for the the circle with diameter of 3 to fit in, the answers has to be 5.
5. As a result, the dimensions of the rectangles are 5in x 10in.
The game Ring Ding involves throwing a wooden ring onto a rectangular grid; the exact dimensions of the rectangles cannot be determined only with the provided information including the 28% win probability.
Explanation:This is a question of probability concerning how a carnival game has been designed. Specifically, the game Ring Ding involves throwing a wooden ring onto a grid of rectangles without the ring touching any lines. Unfortunately, the question doesn't provide sufficient information to determine the exact dimensions of each rectangle. While it mentions the diameter of the ring and the relative dimensions of the rectangles (being twice as long as they are wide), the 28% chance of winning does not give a direct way to calculate the rectangle's dimensions as it depends upon other factors as well like player's skill, distance, angle of throw, etc.
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There were 90 days in the first semester of Margaret’s school year. If she brought her lunch to school 30% of the time, how many days did she bring her lunch during the first semester?There were 90 days in the first semester of Margaret’s school year. If she brought her lunch to school 30% of the time, how many days did she bring her lunch during the first semester?
Answer:
27 days
Step-by-step explanation:
There is a total of 90 days in the semester, and she bought lunch 30% of the total days, then the total number of days she brought the lunch is 27 days.
What is the Percentage?The Latin term "per centum," which signifies "by the hundredth," was the source of the English word "percentage." Segments with a denominator of 100 are considered percentages. In other terms, it is a relationship where the worth of the entire is always considered to be 100.
As per the information provided in the question,
Total days in the semester = 90
Margaret comes with lunch, 30% of the total days.
So, in total days, Margaret comes with lunch,
D = 90 × 30/100
D = 2700/100
D = 27 days.
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Which BEST describes the system of equations?
x = y -3 - 4x =12 - 4y
Consistent
Inconsistent
Consistent and Dependent
D)
Consistent and Independent
Answer:
Hi, the correct answer to this would be B, INCONSISTENT.
I researched this and my cite is www.quizlet.com. It is this answer because it is not consistent Nor C,D.
Step-by-step explanation:
I answered this before but someone deleted every single question I ever answered. Hahaha
Hope this helps :)
Answer:
The answer is CONSISTENT AND DEPENDENT
Step-by-step explanation:
USA Test Prep
The scale on the town map is 1inches = 3miles the distance from dinas home to her school is 0.75 on the map when dina rides her bike from her home to school how many miles does ride?
Answer:
2.25 miles.
Step-by-step explanation:
Given,
In map, the scale is, 1 inch = 3 miles,
That is, the number of miles in 1 inch = 3,
The number of miles in 0.75 inch = 0.75 × number of miles in 1 inch,
= 0.75 × 3
= 2.25
Thus, 0.75 inch = 2.25 miles.
According to the question,
Distance from home to school in scale = 0.75 inch
Hence, the actual distance from home to school is 2.25 miles.
Answer:
2.25
Step-by-step explanation:
Caleb's mother said they will drive 1 /4 hour to get there, and they will drive another 1 /4 hour back. Once they arrive, Caleb's brother will be playing in 3 soccer games. Each soccer game takes 3 4 hour, and there is no break in between games. Calculate how long will they be away from home.
Answer: They are away for [tex]2\dfrac{3}{4}\ hours[/tex] from home.
Step-by-step explanation:
Since we have given that
Time to get there = [tex]\dfrac{1}{4}[/tex]
Time to get back = [tex]\dfrac{1}{4}[/tex]
Number of soccer games = 3
Time for each soccer games = [tex]\dfrac{3}{4}[/tex]
So, total time for 3 games would be
[tex]3\times \dfrac{3}{4}=\dfrac{9}{4}[/tex]
So, the time for which they will be away from home is given by
[tex]\dfrac{1}{4}+\dfrac{9}{4}+\dfrac{1}4}=\dfrac{1+9+1}{4}=\dfrac{11}{4}=2\dfrac{3}{4}\ hours[/tex]
Hence, they are away for [tex]2\dfrac{3}{4}\ hours[/tex] from home.
Caleb and his family will be away from home for a total of 2 3/4 hours.
To find out how long Caleb and his family will be away from home, we need to calculate the total time for the trip to and from the soccer games, as well as the duration of the games.
Driving to the location: 1/4 hourDriving back home: 1/4 hourEach soccer game lasts: 3/4 hour. Since there are 3 games, the total time spent in games is: 3 games × 3/4 hour/game = 2 1/4 hours.Adding it all together:
Total driving time: 1/4 hour + 1/4 hour = 1/2 hour
Total game time: 2 1/4 hours
Total time away from home: 1/2 hour + 2 1/4 hours = 2 3/4 hours
Therefore, Caleb and his family will be away from home for a total of 2 3/4 hours.
50 POINTS AND BRAINLIEST!!
Drag the expressions into the boxes to correctly complete the table.
Answer:
View Image
Step-by-step explanation:
To identify if it's a polynomial, look at the x and its exponent.
x CANNOT be:
1. In the denominator: [tex]\frac{1}{x}[/tex] NOT polynomial
2. In the exponent: [tex]2^x[/tex] NOT polynomial
3. In a root: [tex]\sqrt{x}[/tex] NOT polynomial
The exponent on the x must be a positive integer, therefore,
exponent:
1.) Cannot be a fraction: [tex]x^{1/2}[/tex] NOT polynomial
2.) Cannot be negative: [tex]x^{-2}[/tex] NOT polynomial
piecewise function f(x) is below. What is the value of f(3)?
Option B:
f(3) = 5
Solution:
Given function:
[tex]f(x)=\left\{\begin{aligned}-x^{2}, \ \ & x<-2 \\3, \ \ &-2 \leq x<0 \\x+2, \ \ & x \geq 0\end{aligned}\right.[/tex]
If x value is less than –2, that is –3, –4, –5, –6, ... then f(x) = –x².If x value is greater than or equal to –2 and less than 0, that is –2 and –1 then f(x) = 3.If x value is greater than or equal to 0, that is 0, 1, 2, 3,... then f(x) = x +2.To find the value of f(3):
Here x value is 3 which is greater than 0 (3 > 0).
Therefore, f(x) = x + 2.
Substitute x = 3 in the above function.
f(3) = 3 + 2
f(3) = 5
Hence option B is the correct answer.
Complete the equivalent equation for –7x – 60 = x2 + 10x.
(x + )(x + ) = 0
What are the solutions of –7x – 60 = x2 + 10x?
x =
The equivalent equation is [tex](x+5)(x+12)=0[/tex]
The solution are [tex]x=-5, x=-12[/tex]
Explanation:
Given that the equation is [tex]-7 x-60=x^2+10 x[/tex]
Simplifying the equation, we get,
[tex]0=x^2+10 x+7x+60[/tex]
Switch sides, we have,
[tex]x^2+17 x+60=0[/tex]
Equivalent equation:
Let us factor the quadratic equation.
Thus, we have,
[tex]x^{2} +5x+12x+60=0[/tex]
Grouping the terms, we get,
[tex]x(x+5)+12(x+5)=0[/tex]
Factoring out (x+5), we get,
[tex](x+5)(x+12)=0[/tex]
Thus, the equivalent equation is [tex](x+5)(x+12)=0[/tex]
Solution:
Solving the equation [tex](x+5)(x+12)=0[/tex], we get,
[tex]x+5=0[/tex] and [tex]x+12=0[/tex]
[tex]x=-5[/tex] and [tex]x=-12[/tex]
Thus, the solutions are [tex]x=-5[/tex] and [tex]x=-12[/tex]
Answer:
A. 5
B. 12
C. -12 or -5
Step-by-step explanation:
(x + 5)(x + 12) = 0
What are the solutions of –7x – 60 = x2 + 10x?
x = -12 or -5
In the year 2000, the population of
Adams County was 60,000 residents.
Each year since, its population has
decreased 0.1%. Predict what the
population of Adams County will be
in the year 2015.
12,353 51,604 or 59,106
Answer: 59106
Step-by-step explanation:
We would apply the formula for exponential decay which is expressed as
A = P(1 - r)^ t
Where
A represents the population after t years.
t represents the number of years.
P represents the initial population.
r represents rate of growth.
From the information given,
P = 60000
r = 0.1% = 0.1/100 = 0.001
t = 2015 - 2000 = 15 years
Therefore
A = 60000(1 - 0.001)^15
A = 60000(0.999)^15
A = 59106
The predicted population of Adams County in the year 2015 is calculated using the initial population and applying a yearly decrease of 0.1% over 15 years, resulting in approximately 59,106 residents.
The question involves calculating the predicted population of Adams County in the year 2015 based on a yearly decrease of 0.1% from the year 2000.
To find the population in 2015, we need to apply the percentage decrease for each year from 2000 to 2015, which is a total of 15 years. The formula to calculate the population after a certain number of years with a consistent percentage change is: [tex]P = P_0 (1 - r)^t[/tex] where P is the final population, P₀ is the initial population, r is the rate of decrease, and t is the number of years.
Using the given data, P0 = 60,000, r = 0.001 (0.1% expressed as a decimal), and t = 15 years.
So, the calculation will be: P = 60,000 (1 - 0.001)¹⁵ = 60,000 (0.999)¹⁵ = 60,000 (0.985075) ≈ 59,106
Therefore, the predicted population of Adams County in the year 2015 is approximately 59,106 residents.
Harry got a pair of rain boots and a pair of tennis shoes. Kate got a pair of tennis shoes and sandals what fraction of the set of new shoes is the rain boots
Answer:
1/4 or 25%
Step-by-step explanation:
The set of new shoes is composed by all pairs bought by either Harry or Kate.
Harry bought a pair of rain boots and a pair of tennis shoes while Kate got a pair of tennis shoes and sandals, totaling 4 pairs. Out of those 4 pairs, only 1 pair are rain boots, the fraction corresponding to rain boots is:
[tex]f = \frac{1}{4}=25\%[/tex]
Rain boots are 1/4 of the set of new shoes.
Which of the following are ordered pairs for the equation y = 2x - 3?
(0,-3) (1,-1) (2,1)
(-3,0) (-2,2) (-1,4)
(0,-3) (2,-2) (4,-1)
(-3,0) (-1,1) (1,2)
Answer:
A.
Step-by-step explanation:
The problem states that -3 is our y-intercept, so (0,-3) must be one of the answer choices. Next, just graph the equation to find the other two coordinate pairs are (1,-1) and (2,1).
A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of the employees needed corrective shoes, 15% needed major dental work, and 3% needed both corrective shoes and major dental work. What is the probability that an employee selected at random will need either corrective shoes or major dental work
Answer: 0.206
Step-by-step explanation: the probability of employees that needs corrective shoes are =8%= 8/100 = 0.08
Probability of employees that needs major dental work = 15% = 15/100 = 0.15
Probability of employees that needs both corrective shoes and dental work = 3% = 3/100 = 0.03
The probability that an employee will need either corrective shoes or major dental work = (Probability an employee will need correct shoes and not need dental work) or (probability that an employee will need dental work or not corrective shoes)
Probability of employee not needing corrective shoes = 1 - 0.08 = 0.92
Probability of employee not needing dental work = 1 - 0.15 = 0.85
The probability that an employee will need either corrective shoes or major dental work = (0.08×0.85) + (0.15×0.92) = 0.068 + 0.138 = 0.206 = 20.6%
The probability that an employee will need either corrective shoes or dental work = 0.206.
Please note that the word "either" implies that we must choose one of the two options (corrective shoes or dental work) and not both.
The probability that an employee selected at random will need either corrective shoes or major dental work is 0.206.
Calculation of the probability:Since
The exams showed that 8% of the employees needed corrective shoes, 15% needed major dental work, and 3% needed both corrective shoes and major dental work.
So,
Probability of employee not needing corrective shoes should be
= 1 - 0.08
= 0.92
And,
Probability of employee not needing dental work should be
= 1 - 0.15
= 0.85
So final probability should be
= (0.08×0.85) + (0.15×0.92)
= 0.068 + 0.138 = 0.206
= 20.6%
hence, The probability that an employee selected at random will need either corrective shoes or major dental work is 0.206.
Learn more about probability here; https://brainly.com/question/24442276
How do you writer this function in standard form??
Question 1) Function defining the table:
From the table the x-intercepts are -2 and 1. This means the factors are:
(x+2) and (x-1)
Let
[tex]h(x) = a(x + 2)(x - 1)[/tex]
The point (-1,-1) satisfy this function since it is from the same table.
[tex] - 1 = a( - 1 + 2)( - 1 - 1) \\ - 1 = - 2a \\ a = \frac{1}{2} [/tex]
Therefore the function is
[tex]h(x) = \frac{1}{2} (x + 2)(x - 1)[/tex]
We expand to get:
[tex]h(x) = \frac{1}{2} ( {x}^{2} + x - 2)[/tex]
The standard form is:
[tex]h(x) = \frac{ {x}^{2} }{2} + \frac{x}{2} - 1[/tex]
Question 3) Parabola opening up
The x-intercepts are x=3 and x=7
The factors are (x-3), (x-7)
The factored from is
[tex]y = a(x - 3)(x - 7)[/tex]
The curve passes through (5,-4)
[tex] - 4= a( 5- 3)( 5 - 7) \\ - 4= - 4a \\ a = 1[/tex]
The equation is:
[tex]y = (x - 3)(x + 7)[/tex]
Expand:
[tex]y = {x}^{2} + 7x - 3x - 21[/tex]
[tex]y = {x}^{2} + 4x - 21[/tex]
This is the standard form:
Question 3) Parabola opening down:
The x-intercepts are x=-5 and x=1
The factors are (x+5), (x-1)
The factored form is
[tex]y = - (x + 5)(x - 1)[/tex]
We expand to get:
[tex]y = - ( {x}^{2} - x + 5x - 5)[/tex]
[tex]y = - {x}^{2} - 4x + 5[/tex]
This is the standard form.
#4 find the value of x. Round answer to nearest tenth.
Answer:
Step-by-step explanation:
From the given right angle triangle,
The unknown side represents the hypotenuse of the right angle triangle.
With m∠40 as the reference angle,
x represents the adjacent side of the right angle triangle.
4 represents the opposite side of the right angle triangle.
To determine x, we would apply
the Tangent trigonometric ratio.
Sin θ = opposite side/hypotenuse. Therefore,
Tan 40 = 4/x
x = 4/Tan 40 = 4/0.839
x = 4.8
Which statement describes the system of equations?
It has infinitely many solutions.
It has no solution.
It has one solution .
It has one solution (8, 2).
Answer:
Step-by-step explanation:
it has no solution (8,2)
just took the test
Points N and R both lie on circle O. Line segment RQ is tangent to the circle at point R.
What is the perimeter of triangle RON?
Answer:
Perimeter ΔRON = 18.66 units
Step-by-step explanation:
Complete Question has these information given as well:
Circle with center ORN = QNRQ = [tex]5\sqrt{3}[/tex]ON = 5 unitsRQ is tangentNow, we draw an image according to the information given. THe image drawn is attached.
Looking at the figure, we can say the perimeter of triangle RON would be:
RON = OR + ON + RN
We know according to tangent theorem, QN = QR
RN is equal to that as well and RN = [tex]5\sqrt{3}[/tex]
Now,
OR and ON is the radius, which is "5"
Perimeter of RON = 5 + 5 + [tex]5\sqrt{3}[/tex] = 10 + [tex]5\sqrt{3}[/tex] = 18.66 units
Perimeter ΔRON = 18.66 units
Answer:
18.7 units
Step-by-step explanation:
Find the missing height of the parallelogram when the area is 340 cm².
Answer:
17 cm
Step-by-step explanation:
The formula for the area of a parallelogram is ...
A = bh
The base (b) is given as (5 cm +15 cm) = 20 cm. The area is given as 340 cm^2. Filling in the give numbers, we have ...
340 cm^2 = (20 cm)h
Dividing by the coefficient of h gives ...
(340 cm^2)/(20 cm) = h = 17 cm
The height of the parallelogram is 17 cm.
_____
Comment on the geometry
The triangles at either end of the figure will be 5-12-13 right triangles, meaning the height of the figure is 12 cm. Using that height, we find the area to be (12 cm)(20 cm) = 240 cm^2 (not 340 cm^2). This leads us to believe there is a typo in the problem statement.
As the problem is given, the geometry is impossible. The height of the parallelogram cannot be greater than the length of the slanted side.
As the problem is written, it is a "one-step" problem. (Divide the area by the base length.) If the area were not given, then the Pythagorean theorem would be required to find the height. That is a 2-step problem:
13^2 = 5^2 + h^2
h^2 = 169 -25 = 144 . . . . solve for h²
h = √144 = 12 . . . . . . . . . take the square root
It is not at all clear what 3 steps you're supposed to show in your work.
How many times will the string literal "Hi" appear in the lblMsg control? Dim intCount As Integer Do While intCount > 4 lblMsg.Text = lblMsg.Text & "Hi" & ControlChars.NewLine intCount += 1
Answer:
0
Step-by-step explanation:
In my opinion, the string won't display because, the intCount was not initialized before you started outputting the "Hi" string. So in order fro you to get the string to appear, the control point or value has to be initialized to maybe 0. then you can start looping from there. And if you are looping from the top or using greater than (>), The loop works best buy subtracting the control value else, you can end up with infinity loop.
SOMEONE HELP ME PLEASE I NEED AN EXPLANATION A GOOD ONE!!!!
AND ANSWER!!!!
Find the length of MK if JK=36, JL=48, and JN=60.
The length of MK is 9
Explanation:
The length of the sides are [tex]J K=36[/tex] , [tex]\mathrm{JL}=48[/tex] , [tex]J N=60[/tex]
We need to determine the length of MK
From the figure, we can see that JMN is a triangle and KL is parallel to MN.
Then, by side - splitter theorem, we have,
[tex]\frac{JK}{KM} =\frac{JL}{LN}[/tex]
where [tex]J K=36[/tex] , [tex]\mathrm{JL}=48[/tex]
The length of LN can be determined by subtracting JN and JL.
Thus, we have,
[tex]LN=JN-JL[/tex]
[tex]LN=60-48=12[/tex]
The length of LN is [tex]LN=12[/tex]
Substituting the values [tex]J K=36[/tex] , [tex]\mathrm{JL}=48[/tex] and [tex]LN=12[/tex] in [tex]\frac{JK}{KM} =\frac{JL}{LN}[/tex], we have,
[tex]\frac{36}{KM} =\frac{48}{12}[/tex]
Multiplying both sides by 12, we have,
[tex]\frac{36\times 12}{KM} =48[/tex]
[tex]\frac{432}{KM} =48[/tex]
[tex]\frac{432}{48} =KM[/tex]
[tex]9=KM[/tex]
Thus, the length of MK is 9