Answer: $187.5
Step-by-step explanation:
The interest = 5000× ( 7.5/100 )÷2
=5000 × 0.075 ÷2
= 5000 ×0.0375
= 187.5 has interest semiannually
Hence, he gets 187.5
If Henry were to add 5 gallons of water to a tank that is already 3434 full of water, the tank would be 7878 full. How many gallons of water would the tank hold if it were full
Answer:
The tank would hold 40 gallons of water when full.
Step-by-step explanation:
The tank is already 3/4 full of water
If Henry added 5 gallons, it will be 7/8 full.
Therefore the fraction added by Henry =7/8-3/4=1/8
It means that 1/8 of the total=5 gallons of water
Let the total capacity of the tank=x
[tex]\frac{1}{8}Xx=5 gallons\\ x=8X5=40 gallons[/tex]
The tank would hold 40 gallons of water when full.
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 graph of the function g(x) = x^4-8x³+x²+42x has zeros at -2, 0, 3 and 7. What are the signs of the values between 0 and 3? Show algebraically how you know.
Answer:
The answer to your question is Positive
Step-by-step explanation:
Function
g(x) = x⁴ - 8x³ + x² + 42x
To know if the function is positive or negative in the interval (0, 3), look for two numbers between this interval and evaluate the function.
The numbers I chose were 1 and 2
- g(1) = (1)⁴ - 8(1)³ + (1)² + 42(1)
= 1 - 8 - 1 + 42
= + 36 positive
- g(2) = (2)⁴ - 8(2)³ + (2)² + 42(2)
= 16 - 64 + 4 + 84
= + 40
Conclusion
The function is positive in the interval (0, 3)
You are camping with Joe and Karl. Since all three of you like your privacy, you don’t pitch your tents close together. Joe’s tent is 21.0 m from yours, in the direction 23.0° south of east. Karl’s tent is 32.0 m from yours, in the direction 37.0° north of east. What is the distance between Karl’s tent and Joe’s tent?
Answer:
Step-by-step explanation:
According to the flaring, the triangle expressed in the figure is formed.
Now we have a vector A and vector B, whose components are Ax, Ay and Bx and By respectively.
To calculate these components you must use the following formulas:
Ax = A * cos [angle a] = 32 * cos 37 ° = 25.6
Ay = A * sin [angle a] = 32 * sin 37 ° = 19.3
Bx = B * cos [angle a] = 21 * cos 23 ° = 19.3
By = B * sin [angle b] = 21 * sin 23 ° = - 8.2
In the figure it can be seen that vector B is the result of vector A and vector C
Thus:
B = A + C
reorganizing is:
C = B - A
Now to calculate Cx and Cy, we will do it with the previously calculated components:
Cx = Bx - Ax = 19.3 - 25.6 = -6.3
Cy = By - Ay = -8.2 - 19.3 = -27.5
Now to calculate the value of vector C, we apply the following formula:
C ^ 2 = Cx ^ 2 + Cy ^ 2
Rearranging:
C = (Cx ^ 2 + Cy ^ 2) ^ (1/2)
C = [(-6.3 ^ 2) + (27.5 ^ 2)] ^ (1/2) = 28.2
Then the distance would be 28.2 meters.
A Chinese restaurant uses about 15 exponent 2 appearance of chopsticks each day the manager wants to order a 30-day supply of chopsticks chopsticks come in boxes of 750. How many boxes should the manager order
Answer:
9 boxes of chopsticks.
Step-by-step explanation:
The first thing is to calculate the number of chopsticks spent in a day, the problem tells us that they are 15 ^ 2 = 15 * 15 = 225 chopsticks daily.
To calculate the number of chopsticks in 30 days, it is to calculate the previous amount by 30:
225 * 30 = 6750 chopsticks spent in one month.
To know how many boxes you should order is to divide the total number of chopsticks in a month and the number of chopsticks that a box brings that are 750:
6750/750 = 9 boxes of chopsticks.
Therefore you should order exactly 9 boxes of chopsticks for the restaurant's need.
Mary Ward recently leased a new convertible. The $1600 due at signing inc the title and license fee. Her monthly lease payments are $700 per mont leasing company allows 12,000 miles per year with a $0.12 per mile overage charge. If the total lease cost is $26,800, for how many months does the lease ludes . The last?
This calculation shows that Mary Ward's lease term is 36 months.
The question is asking us to find out for how many months Mary Ward's car lease lasts. To do so, we need to calculate the total monthly payments and then subtract the initial $1600 fee to find the total cost of the monthly payments alone. Then, we divide this amount by the monthly lease payment to determine the total number of months for the lease duration.
First, we deduct the initial fee from the total lease cost:
Total lease cost - Initial fee = Total of monthly payments
$26,800 - $1,600 = $25,200
Next, we divide this result by the monthly lease payment to find out the number of months:
$25,200 / $700 = 36 months
Therefore, the lease agreement lasts for 36 months, which is typically the term for most vehicle leases.
what is the expansion of (3+x)^4
Answer:
[tex]\left(3+x\right)^4:\quad x^4+12x^3+54x^2+108x+81[/tex]
Step-by-step explanation:
Considering the expression
[tex]\left(3+x\right)^4[/tex]
Lets determine the expansion of the expression
[tex]\left(3+x\right)^4[/tex]
[tex]\mathrm{Apply\:binomial\:theorem}:\quad \left(a+b\right)^n=\sum _{i=0}^n\binom{n}{i}a^{\left(n-i\right)}b^i[/tex]
[tex]a=3,\:\:b=x[/tex]
[tex]=\sum _{i=0}^4\binom{4}{i}\cdot \:3^{\left(4-i\right)}x^i[/tex]
Expanding summation
[tex]\binom{n}{i}=\frac{n!}{i!\left(n-i\right)!}[/tex]
[tex]i=0\quad :\quad \frac{4!}{0!\left(4-0\right)!}3^4x^0[/tex]
[tex]i=1\quad :\quad \frac{4!}{1!\left(4-1\right)!}3^3x^1[/tex]
[tex]i=2\quad :\quad \frac{4!}{2!\left(4-2\right)!}3^2x^2[/tex]
[tex]i=3\quad :\quad \frac{4!}{3!\left(4-3\right)!}3^1x^3[/tex]
[tex]i=4\quad :\quad \frac{4!}{4!\left(4-4\right)!}3^0x^4[/tex]
[tex]=\frac{4!}{0!\left(4-0\right)!}\cdot \:3^4x^0+\frac{4!}{1!\left(4-1\right)!}\cdot \:3^3x^1+\frac{4!}{2!\left(4-2\right)!}\cdot \:3^2x^2+\frac{4!}{3!\left(4-3\right)!}\cdot \:3^1x^3+\frac{4!}{4!\left(4-4\right)!}\cdot \:3^0x^4[/tex]
[tex]=\frac{4!}{0!\left(4-0\right)!}\cdot \:3^4x^0+\frac{4!}{1!\left(4-1\right)!}\cdot \:3^3x^1+\frac{4!}{2!\left(4-2\right)!}\cdot \:3^2x^2+\frac{4!}{3!\left(4-3\right)!}\cdot \:3^1x^3+\frac{4!}{4!\left(4-4\right)!}\cdot \:3^0x^4[/tex]
as
[tex]\frac{4!}{0!\left(4-0\right)!}\cdot \:\:3^4x^0:\:\:\:\:\:\:81[/tex]
[tex]\frac{4!}{1!\left(4-1\right)!}\cdot \:3^3x^1:\quad 108x[/tex]
[tex]\frac{4!}{2!\left(4-2\right)!}\cdot \:3^2x^2:\quad 54x^2[/tex]
[tex]\frac{4!}{3!\left(4-3\right)!}\cdot \:3^1x^3:\quad 12x^3[/tex]
[tex]\frac{4!}{4!\left(4-4\right)!}\cdot \:3^0x^4:\quad x^4[/tex]
so equation becomes
[tex]=81+108x+54x^2+12x^3+x^4[/tex]
[tex]=x^4+12x^3+54x^2+108x+81[/tex]
Therefore,
[tex]\left(3+x\right)^4:\quad x^4+12x^3+54x^2+108x+81[/tex]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)).
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]
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
Please help meeeeeeeeeeeee
Answer: the solutions of the equation are
x = - 1
x = 8
x = 9
Step-by-step explanation:
The given cubic equation is expressed as
x³ - 16x² + 55x + 72 = 0
The first step is to test for any value of x that satisfies the equation when
x³ - 16x² + 55x + 72 = 0
Assuming x = - 1, then
- 1³ - 16(-1)³ + 55(-1) + 72 = 0
- 1 - 16 - 55 + 72 = 0
0 = 0
It means that x + 1 is a factor.
To determine the other factors, we would apply the long division method. The steps are shown in the attached photo. Looking at the photo, we would factorize the quadratic equation which is expressed as
x² - 17x + 72 = 0
x² - 9x - 8x + 72 = 0
x(x - 9) - 8(x - 9) = 0
(x - 9)(x - 8) = 0
How many subsets does the set {Apple, Banana} have?
2
3
4
5
6
Answer:
4
Step-by-step explanation:
{ }
{Apple}
{Banana}
{Apple, Banana}
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%
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.
Tyler selects one card from the three(4,5, and a King), and rolls a number cube. What is the probability that she selects the 5, and rolls a number less than 5?
[tex]\frac{1}{3}[/tex]Answer:
2/9
Step-by-step explanation:
given that Tyler selects one card from the three(4,5, and a King), and rolls a number cube.
We find that A the event of selecting one card and B getting a number on rolling a number cube are independent events.
No of cards = 3
Prob of selecting 5 from 3 cards = [tex]P(1,2,3, or 4) = \frac{2}{3}[/tex]
When rolling a number cube (assuming fair) there is equally likely for all numbers to appear from 1 to 6
Prob of getting 5 =[tex]\frac{1}{6}[/tex]
Prob of getting less than 5 =
Since these two events are independent,
the probability that she selects the 5, and rolls a number less than 5
= Product of probabilities
= [tex]\frac{1}{3}[/tex]*[tex]\frac{2}{3}[/tex]
=[tex]\frac{2}{9}[/tex]
Which method can be used to find a fraction equivalent to Five-sixths? Five-sixths = StartFraction 5 times 2 over 6 times 3 EndFraction = Ten-eighteenths Five-sixths = StartFraction 5 times 3 over 6 times 4 EndFraction = StartFraction 15 over 24 EndFraction Five-sixths = StartFraction 5 times 5 over 6 times 6 EndFraction = StartFraction 25 over 36 EndFraction Five-sixths = StartFraction 5 times 3 over 6 times 3 EndFraction = Fifteen-eighteenths
Answer:
The correct option is
d) Five-sixths = StartFraction 5 times 3 over 6 times 3 EndFraction = Fifteen-eighteenths = 15/18 ÷ 1 = 15/18 ÷ 3/3 = 5/6
Step-by-step explanation:
Which method can be used to find a fraction equivalent to Five-sixths?
a) Five-sixths = StartFraction 5 times 2 over 6 times 3 EndFraction = Ten-eighteenths
Here 10/16 = 5/8 ≠ 5/6
b) Five-sixths = StartFraction 5 times 3 over 6 times 4 EndFraction = StartFraction 15 over 24 EndFraction
15/24 = 5/8 ≠ 5/6
c) Five-sixths = StartFraction 5 times 5 over 6 times 6 EndFraction = StartFraction 25 over 36 EndFraction
25/36 ≠ 5/6
d) Five-sixths = StartFraction 5 times 3 over 6 times 3 EndFraction = Fifteen-eighteenths
15/18 ⇒ 15/18÷3/3 = 5/6
note that 3/3 = 1
Answer:
Its D buddy!
Step-by-step explanation:
Cuz 3 People said it was D.
Write simplified expressions for the area and perimeter of the rectangle. Area: 8 8 x+ x+ Perimeter: 2 2 x+ x+
The simplified expressions for the area and perimeter of the rectangle are 16x and 4x, respectively.
To simplify the expressions for the area and perimeter of the rectangle, we can extract common factors:
Area: [tex]\(8(x + x) = 8 \times 2x = 16x\)[/tex]
Perimeter: [tex]\(2(x + x) = 2 \times 2x = 4x\)[/tex]
Therefore, the simplified expressions are:
Area: 16x
Perimeter: 4x
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
Ron and Annie have $1,349.85 in their checking account. During the week, Annie goes to an ATM and withdraws $80. The following week Ron deposits his paycheck of $699.65. Annie then pays bills online in the amounts of: $215.70, $53, $49.76, and $100.35. What is the current balance in their checking account
Answer:
$1550.69
Step-by-step explanation:
Deposits get added and withdrawals and bill payments get subtracted from the balance. The new balance is ...
$1349.85 -80 +699.65 -215.70 -53 -49.76 -100.35 = $1550.69
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.
The average wall thickness of 25 panes of glass is 4.05 mm. The standard deviation of the thickness of the 25 panes is measured to be 0.08 mm. What is the 90% confidence interval of the mean of wall thickness
Answer:
u => 4,028
Step-by-step explanation:
To find the answer, we have the following formula:
u => m - t (alpha, n-1) * [sd / (n) ^ (1/2)]
where m is the mean.
where sd is the standard deviation.
where n is the sample size.
t is a parameter that depends on the confidence interval and the sample size.
alpha = 1 - ci
ci = 90% = 0.9
Therefore, alpha = 1 - 0.9 = 0.1.
n - 1 = 25 - 1 = 24
So it would come being t (0.1, 24), if we look in the table, which I will attach the value of t is equal to 1.318.
We know the rest of the values, m = 4.05; sd = 0.08; n = 25
u => 4.05 - 1,318 * [0.08 / (25) ^ (1/2)]
u => 4.028
Which means that the interval with a 90% confidence of the wall thickness measurement is:
u => 4.028
A group of equations that have a common intersection point is called
Answer:
system of equations i think
Step-by-step explanation:
A group of equations that have a common intersection point is called: system of equations.
A system of equations can be defined as an algebraic equation of the first order with two (2) variables and each of its term having an exponent of one (1).
Generally, a system of equations in two (2) variables must have at least two (2) solution.
This ultimately implies that, a system of equations must have a common intersection point.
In Mathematics, an example of a system of equations include the following:
[tex]2x + 4y = 8[/tex] ....equation 1.[tex]2x - 8y = 20[/tex] ....equation 2.Additionally, the above system of equations can easily be solved by using an elimination method.
In conclusion, a solution of the group of equations is an ordered pair that satisfies all the equations in a system of equations.
Read more: https://brainly.com/question/24085666
Find an equation of the line. Write the equation in standard form.
Horizontal; through (3,-9)
Answer:
y = -9
Step-by-step explanation:
Standard form of the equation of a line is ...
ax + by = c
When that line is a horizontal line, this can be reduced to ...
y = c
The value of c must be the same as the y-coordinate of the point you want this line to go through.
y = -9 . . . . . . horizontal line through (3, -9)
Trig please help
Law of Sines and the Ambiguous Case.
m < A = 34*
a = 9
c = 6
How many distinct triangles can be drawn given these measurements?
Answer:
One
Step-by-step explanation:
9/sin(34) = 6/sinC
sinC = 0.372795269
C = 21.9, 158.1
Since 158.1 + 34 = 192.1 > 180
Only one triangle can be formed with angle 21.9° at C
Sin(146° + ∠B) cannot exceed 1, there is no solution for b that satisfies the triangle inequality. Therefore, no distinct triangle can be drawn with the given measurements.
To determine the number of distinct triangles that can be drawn with the given measurements using the Law of Sines, we need to consider the Ambiguous Case (also known as the SSA case or the "side-side-angle" case).
The Law of Sines states:
sin(A) / a = sin(B) / b = sin(C) / c
Given:
m∠A = 34°
a = 9
c = 6
We want to find ∠B and side b.
First, find ∠B using the Law of Sines:
sin(B) / b = sin(A) / a
sin(B) / b = sin(34°) / 9
Now, find sin(34°):
sin(34°) ≈ 0.5592
Now, solve for sin(B) by multiplying both sides by b:
sin(B) = (0.5592 * b)
Next, find ∠C:
Since the sum of angles in a triangle is 180°:
∠C = 180° - ∠A - ∠B
∠C = 180° - 34° - ∠B
Determine the value of side b:
Using the Law of Sines again, we have:
sin(C) / b = sin(A) / a
sin(C) / b = sin(34°) / 9
Find sin(C):
sin(C) = sin(180° - 34° - ∠B)
We can now use the fact that sin(C) = sin(180° - angle) to find sin(C):
sin(C) = sin(180° - 34° - ∠B) = sin(146° + ∠B)
Now, solve for b by multiplying both sides by b:
sin(146° + ∠B) = (sin(34°) / 9) * b
Since sin(146° + ∠B) cannot be greater than 1 (the maximum value for sine), the number of distinct triangles will depend on the possible values of b.
In this case, we have sin(146° + ∠B) = (sin(34°) / 9) * b, and since sin(34°) ≈ 0.5592, the maximum value for (sin(34°) / 9) * b is approximately 0.5592 * 6 ≈ 3.3552.
Since sin(146° + ∠B) cannot exceed 1, there is no solution for b that satisfies the triangle inequality. Therefore, no distinct triangle can be drawn with the given measurements.
To know more about Sines here
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A map is shown with a scale drawing of 1 inch = 15 miles,nicloe measured the distance to the next town as 3 inches. How many miles does she have to travel to get to the next town
Answer: There are 45 miles that she have to travel to get to the next down.
Step-by-step explanation:
Since we have given that
1 inch = 15 miles
If there are given 3 inches.
We need to find the number of miles she have to travel to get to travel to get to the next town.
So, it becomes,
[tex]\dfrac{1}{15}=\dfrac{3}{x}\\\\x=15\times 3\\\\x=45\ miles[/tex]
Hence, there are 45 miles that she have to travel to get to the next down.
solve for x.
A. 13
B. 14
C. 12
D. 11
Answer:
the answer is a
Step-by-step explanation:
Answer:
x = 13
Step-by-step explanation:
One of the THEOREM for triangles states that, A LINE DRAWN PARALLEL TO ONE SIDE OF THE TRIANGLE DIVIDES THE OTHER TWO SIDES IN THESAME RATIO.
From the figure above:
VW is parallel to SU.
VW divides ST and TU in thesame ration.
Hence:
TV / SV = TW / UW
14 / 6 = 21 / (x - 4)
Cross Multiplying gives:
14( x - 4) = 6 * 21
14x - 56 = 126
14x = 126 + 56
14x = 182
Divide through by 14.
x = 182/14
x = 13
You return a DVD movie that was 5 days overdue including a previous unpaid balance of $2.50, your new balance is $7.75. How much is the daily fine for an overdue DVD?
Answer:
$ 1.05
Step-by-step explanation:
To solve the problem it is necessary to pose some equations, which are the following:
Debt DVD = New Balance - Old Balance
With this we will calculate the net value that only has to do with the debt of the DVD:
Debt DVD: 7.75 - 2.50 = 5.25
Now, the other equation is the value per day that generates a delay.
Debt DVD / # days
Replacing
5.25 / 5 = 1.05
Then the daily fine for a overdueDVD is $ 1.05
Suppose that a brand of lightbulb lasts on average 1730 hours with a standard deviation of 257 hours. Assume the life of the lightbulb is normally distributed. Calculate the probability that a particular bulb will last from 1689 to 2267 hours?
Answer:
P [ 1689 ≤ X ≤ 2267 ] = 54,88 %
Step-by-step explanation:
Normal Distribution
Mean μ₀ = 1730
Standard Deviation σ = 257
We need to calculate z scores for the values 1689 and 2267
We apply formula for z scores
z = ( X - μ₀ ) /σ
X = 1689 then
z = (1689 - 1730)/ 257 ⇒ z = - 41 / 257
z = - 0.1595
And from z table we get for z = - 0,1595
We have to interpolate
- 0,15 0,4364
- 0,16 0,4325
Δ = 0.01 0.0039
0,1595 - 0,15 = 0.0095
By rule of three
0,01 0,0039
0,0095 x ?? x = 0.0037
And 0,4364 - 0.0037 = 0,4327
Then P [ X ≤ 1689 ] = 0.4327 or P [ X ≤ 1689 ] = 43,27 %
And for the upper limit 2267 z score will be
z = ( X - 1730 ) / 257 ⇒ z = 537 / 257
z = 2.0894
Now from z table we find for score 2.0894
We interpolate and assume 0.9815
P [ X ≤ 2267 ] = 0,9815
Ths vale already contains th value of P [ X ≤ 1689 ] = 0.4327
Then we subtract to get 0,9815 - 0,4327 = 0,5488
Finally
P [ 1689 ≤ X ≤ 2267 ] = 0,5488 or P [ 1689 ≤ X ≤ 2267 ] = 54,88 %
I WILL GIVE A CROWN JUST NEED HELP ASAP
Answer:
C option is correct 5/8.
Step-by-step explanation:
Ela ate chocolate on Tuesday = 1/8
Remaining chocolate = 1 - 1/8
= 7/8
Ela ate chocolate on Wednesday = 7/8
Chocolate left = 7/8 - 2/8
= 5/8
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