Answer:
[tex]\large\boxed{A=25\pi}[/tex]
Step-by-step explanation:
The formula of an area of a circle:
[tex]A=\pi r^2[/tex]
r - radius
We have r = 5. Substitute:
[tex]A=\pi(5^2)=25\pi[/tex]
Suppose that we wish to assess whether more than 60 percent of all U.S. households in a particular income class bought life insurance last year. That is, we wish to assess whether p, the proportion of all U.S. households in the income class that bought life insurance last year, exceeds .60. Assume that an insurance survey is based on 1,000 randomly selected U.S. households in the income class and that 640 of these households bought life insurance last year
Answer:
dont know
Step-by-step explanation:
Answer:
Step-by-step explanation:
Set up hypotheses as:
[tex]H-0: p=0.60\\H_a: p >0.60[/tex]
(Right tailed test)
Sample proportion p = favourable/total = [tex]\frac{640}{1000} =0.64[/tex]
p difference [tex]=0.64-0.60 =0.04[/tex]
Sample std error = [tex]\sqrt{\frac{pq}{n} } =\sqrt{\frac{0.64(0.36)}{1000} } \\=0.0152[/tex]
Critical value for95% = 1.96
Margin of error = [tex]1.96(0.0152)\\= 0.0298[/tex]
Confidence interval for proportions
=[tex](0.64-0.0298, 0.64+0.0298)\\=(0.6102,0.6698)[/tex]
Since confidence interval does not contain 0.60 we reject null hypothesis.
At 5% significance level we can accept thta proportion >0.60
If r(x) = 2 – x2 and w(x) = x – 2, what is the range of (w.r) (x)?
The range of (w.r)(x) is all real numbers.
Explanation:The range of (w.r)(x) can be found by substituting the value of x from w(x) into r(x). So, we have:
(w.r)(x) = r(w(x)) = 2 - (x - 2)^2 = 2 - (x^2 - 4x + 4) = 6 - x^2 + 4x.
Therefore, the range of (w.r)(x) is all real numbers.
In the drawer, there are 9 knives, 9 spoons, and 4 forks. What is the probability of randomly drawing a knife or spoon?
Answer:
Hello! Your answer is 36%
Step-by-step explanation:
9+9=18.
18/5 = 18÷5
18÷5 = 3.6 = 36%
HOPE THIS HELPS!
Answer:
Your answer is 36%
Step-by-step explanation:
9+9=18÷5=3.6=36%
Niko rides his bike 5,300 yards to his friends house. About how many miles does Niko ride?
Answer:
3.011364 miles
Step-by-step explanation:
length value divided by 1760
Answer:
3.011 miles
Step-by-step explanation:
5300 yds 3 ft 1 mi
--------------- * ----------- * ------------ = 3.011 miles
1 1 yd 5280 ft
Which expression is represented by the model?
A. X-3
B. X+3
C. -X-3
D.-X+3
first we know that the X is negative so we can ignore number A and B because they are positive.
Then we are left with two solutions and if you referred to the picture we know that whatever comes after has to be positive
So the correct answer is D
Answer:
D. -X + 3.
Step-by-step explanation:
There are 3 plus signs and a -x.
what is the area of the triangle shown below?
Answer: 18
Step-by-step explanation:
Per a.p.e.x
The area of a triangle can be found using the formula: Area = (base × height) / 2.
Explanation:The area of a triangle can be found using the formula: Area = (base × height) / 2. To find the area of the triangle shown below, you need to know the length of the base and the height. Once you have those values, you can plug them into the formula to calculate the area.
Mr. Jones is getting a 6% raise. If he made $720 a week, how much more will he make with the raise?
$720 * .06 = 43.2
He will make $43.20 more each week.
Find the value of the expression.
Answer:
35 3/8
Step-by-step explanation:
[tex]\text{Hey there!}[/tex]
[tex]\frac{5}{(-1.5+9.5)}+\frac{0.4(7+11)}{-0.2}\\\\ \text{- 1.5 + 9.5 = 8}[/tex]
[tex]\frac{5}{8}+\frac{0.4(7+11)}{-0.2}[/tex]
[tex]\text{7 + 11 = 18}[/tex]
[tex]\frac{5}{8}+\frac{0.4(18)}{-0.2}[/tex]
[tex]\text{0.4(18) = 7.2}[/tex]
[tex]\frac{5}{8}+\frac{7.2}{-0.2}[/tex]
[tex]\frac{7.2}{-0.2}=-36[/tex]
[tex]\frac{5}{8}+(-36)=-36.375[/tex]
[tex]\boxed{\boxed{\bf{Answer:decimal\ form\rightarrow-35.375\ Fraction\ form:35\frac{3}{8}}}}[/tex] [tex]\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{LoveYourselfFirst:}[/tex]
In set builder notation Write a compound inequality to represent all of the numbers between -4 and 6. (example..... {x|2
For this case, we must represent the numbers that are included between -4 and 6. Let "x" be the variable that represents these numbers, then we have:
[tex]-4 <x <6[/tex]
If the set includes -4 and 6 then we have:
[tex]-4\leq x\leq 6[/tex]
Answer:
[tex]{x | -4 <x <6}[/tex] or
[tex]{x | -4\leq x\leq 6}[/tex]
Jeffrey surveys the 13 girls and 13 boys in his class to find out how many pairs of shoes they have in their closets. Which statement is true
Answer:
the answer is c
Step-by-step explanation:
The median number of shoes for the girls is greater than the median number of shoes for the boys. To find the medians, order the data sets and find the middle value.
The statement which is true about Jeffery's survey of the 13 girls and 13 boys is;
Mean and Median as a measure of Central TendencyAlthough, the mean and median are statistical measures of central tendency.
It follows from the data obtained from the survey that:
The mean and median for the girls are greater than the mean and median of the boys respectively.Additionally, the value of Q1 and Q3 for the girls is greater than that of the boys respectively.On this note, it follows from the Inferences above that, the statement which is true about the survey is; The value of Q1 for the girls is greater than the value of Q1 for the boys.
Remarks:
A)The value of Q1 for the girls is greater than the value of Q1 for the boys.
B) The value of Q3 for the boys is greater than the value of Q3 for the girls.
C)The mean number of shoes for the boys is greater than the mean number of shoes for the girls.
D)The median number of shoes for the boys is greater than the median number of shoes for the girls.
Read more on statistical measures;
https://brainly.com/question/16801597
plzzz help me quick!!!
Answer:
A.) 8n - 359
Step-by-step explanation:
8(1) - 359 = -351
8(2) - 359 = -343
8(3) - 359 = -335
If y is 4.5 when x is 3, and y varies directly with x, find y when x is 9. 1.5 7.5 10.5 13.5
ANSWER
13.5
EXPLANATION
It was given that, y varies directly as x.
Therefore, the variation equation is of the form:
[tex]y = kx[/tex]
If y is 4.5 when x is 3, then we can substitute to find the constant of variation.
[tex]4.5 = 3k[/tex]
Divide both sides by 3;
[tex]k = \frac{4.5}{3} [/tex]
[tex]k = \frac{3}{2} [/tex]
Hence the equation becomes:
[tex]y = \frac{3}{2} x[/tex]
When x=9,
[tex]y = \frac{3}{2} \times 9 = 13.5[/tex]
Please hurry!!
The children's section is rectangular and has three of its corners at (-10, 10), (-10, 4), and (-3, 10). What are the coordinates of the remaining corner?
(-3,4)
If its rectangular then parallel lines must be the same size , just draw it and it will make a lot of sense
Answer is (-3,4)
See photo
What’s 92508253 in words
92,508,253
Ninety-two million, five hundred eight thousand, two hundred fifty-three
Answer:
ninety-two million, five hundred eight thousand, two hundred fifty-three
Which of the following are considered measures of center?
I. mean
II. median
III. mean absolute deviation
Answer:
only 1 and 2
(mean and median)
the mean absolute deviation is the measure of variability
Step-by-step explanation:
Mean and median are the measures of center
Please Help! :C A bathroom is located at (-9, 0) on the map. How far would someone have to walk to get from the checkout desk to the bathroom. Explain or show how you got your answer.
Answer:
you would have to walk 9 to the left.
Step-by-step explanation:
I'm assuming that the checkout desk is at (0,0) You would have to walk 9 to the left because on a coordinate plane negative is either left or down. since the -9 is on the x axis it is 9 to the left. Can I get brainliest
Answer:
walk 9 to the left
Step-by-step explanation:
there is a picture of Cube with the #6
Match each prism with its volume
here are the choices
36
45
60
216
250
546
Answer:
going down the picture
45
36
250
546
216
60
Step-by-step explanation:
What she said....... is what i was going to say but yes that person is correct
i need help please thank you
Answer:
2 < x < 7
Step-by-step explanation:
2 is less than x can be written as ...
2 < x
7 is greater than x can be written as ...
7 > x
It can also be written with the expressions and symbol reversed:
x < 7
Then the two inequalities can be combined into one compound inequality:
2 < x < 7
Answer:
2-x + 7 > x
Step-by-step explanation:
whats 4 ways to make 23 cents using dimes,nickels, and pennies
23 pennies
4 nickels, 3 pennies
2 dimes, 3 pennies
1 dime, 2 nickles, 3 pennies
Simplify the expression. X^2-x/2x-2x^2
Answer:
[tex]\large\boxed{\dfrac{x^2-x}{2x-2x^2}=-\dfrac{1}{2}}[/tex]
Step-by-step explanation:
[tex]\dfrac{x^2-x}{2x-2x^2}=\dfrac{x^2-x}{-2(x^2-x)}\\\\\text{cancel}\ (x^2-x)\\\\=-\dfrac{1}{2}[/tex]
1.
(07.04A)
Which of the sets of ordered pairs represents a function? (4 points)
A = {(1, −2), (3, −5), (5, 2), (7, 5)}
B = {(4, 2), (4, −2), (9, 3), (9, −3)}
Only A
Only B
Both A and B
Neither A nor B
Answer:
The answer is only A
happy to help
Set A represents a function because each element of its domain is paired with a unique element in the range. Set B does not represent a function because it has repeated first elements without unique corresponding second elements.
Explanation:The question asks which set of ordered pairs represents a function. A function is a special type of relation where each element of the domain (the first element in each ordered pair) is paired with a unique element in the range (the second element in each ordered pair). Analyzing option A, we see that each first element in the set A = {(1, −2), (3, −5), (5, 2), (7, 5)} is unique, which means it represents a function. However, for option B, we have repeated first elements in the set B = {(4, 2), (4, −2), (9, 3), (9, −3)}, which means it does not meet the criteria for a function as the first element, which belongs to the domain, is not mapped to a unique value in the range.
The histogram shows the weekly attendance of participants in a school's study skills program. Student attendance numbers were the same during which two weeks of the workshop?
Student attendance numbers were the same during which two weeks of the workshop? B. weeks 2 and 4
Explanation:A histogram is the graphical display of data by using bars of different heights. Histograms provide a visual interpretation of numerical data by indicating the number of data points that lie within a range of values. Histogram was first introduced by Karl Pearson in 1891.
Some histograms presented with the independent variable along the vertical axis and dependent variable along the horizontal axis. The histogram attached below shows the weekly attendance of participants in a school's study skills program. In the histogram the x axis is number of weeks and y axis is number of students in attendance.
According to the histogram attached we can see that in week 1 the Student attendance was 8, in week 2 the Student attendance was 12, in week 3 the Student attendance was 15, in week 4 the Student attendance was 12, in week 5 the Student attendance was 18, in week 6 the Student attendance was 16. Hence the Student attendance numbers are the same during week 2 and 4 of the workshop. Therefore the correct option is B
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Student attendance numbers were the same in week 2 and 4
What is a histogram?A histogram is a graphical representation of data that uses bars of various heights. By showing how many data points fall inside a certain range of values, histograms provide numerical data a visual interpretation. Karl Pearson initially described the histogram in 1891.
In some histograms, the dependent variable is displayed along the horizontal axis and the independent variable is given along the vertical axis. Participants in a school's study skills program's weekly attendance are depicted in the histogram below. The number of weeks is on the histogram's x-axis and the number of students present is on the y-axis.
GIVEN
The histogram that is attached shows that the student attendance for the first week was 8, for the second week was 12, for the third week was 15, for the fourth week was 12, for the fifth week was 18, and for the sixth week was 16. Thus, the student attendance figures for weeks two and four of the program are identical.
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Reynaldo is a landlord who owns several rental homes one all wood home in the suburbs is worth 95,000 because the renters insure their own belongings what is the premium Reynaldo pays for property insurance per year?
Answer:B
95,000÷100 then multiply by $0.83 since it's a wood home in the suburbs.
Step-by-step explanation:
Answer:
788.5
Step-by-step explanation:
Which graph matches the equation y = -(x-2)2
The equation y = -(x-2)² represents a parabola opening downwards with a vertex at (2, 0). To find the matching graph, plot several points by calculating y for chosen x values and then connect the points to reveal the parabola's shape.
Explanation:The student is asking for the graph that matches the equation y = -(x-2)². This equation represents a parabola that opens downwards due to the negative sign in front of the parenthesis. To plot this, we'll need to create a table of values by choosing different x values, inserting them into the equation, and calculating the corresponding y values. After plotting these points, we'll see the shape of the parabola. Its vertex, the highest point on the graph due to the downward opening, will be at (2, 0) since the equation is in the form y = -a(x - h)², where (h, k) is the vertex of the parabola.
Steps for Plotting:Choose x values around the vertex (2, 0).Calculate y for each x.Plot the points on the coordinate plane.Connect the points to form a parabola.find the geometric mean of 4 and 14
Answer:9
Step-by-step explanation: find the average
Melisa is throwing a birthday party for her son. She ordered 4 pizzas, she realizes that her son invited more people than she thought, so she decides to order 1 more pizza for every 3 people that come to the party. The total number of pizzas, y , can be expressed in terms of the number of people that show up to the party, x . which inequality represents this situation?
y = -one third x + 4
y = one third x + 4
y = 3x - 4
y = 3x + 4
Answer:
y = 3x + 4
Step-by-step explanation:
3x would be the number of people that show up to the party times the number of pizza's needed plus the 4 she already ordered
Brainliest + Points! I need help please explain
Answer:
D
Step-by-step explanation:
AB is in the first quadrant
Coordinate points in the first quadrant are (x, y)
Under a reflection in the x- axis
a point (x, y ) → (x, - y) ← a point in quadrant 4 → D
Probably simple math. 20 points.
ok well first you would find what the square root would be then you just see where it falls on the number line
so the sqrt of 29 is 5.38516... so it falls between 5 and 6.
so the answer is 5 and 6
it is in between 5 and 6
Find the surface area of this triangular prism Please help is appreciate it
Answer: 5,376in.
Step-by-step explanation:
Volume of a prism = Bh
B = 1/2bh
B = 7 x 24 = 168
168 x 32 = 5,376in.
The area of the base of a rectangular prism is 18 cm2. The height of the prism is 9 1 2 cm. What is the volume of the prism? A) 27 1 2 cm3 B) 54 1 2 cm3 C) 84 3 4 cm3 D) 171 cm3 please answer quick
Multiply the area of the base by it's height.
18 x 9 1/2 = 171 cm^3
The answer is D.
Answer:
D) 171 cm3
Step-by-step explanation: