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Alexeev081 [22]
3 years ago
12

The smith family bought a new tent for a camping tent

Mathematics
2 answers:
ioda3 years ago
8 0

Answer:

Multiplt than divide by 3

Step-by-step explanation:

Zepler [3.9K]3 years ago
3 0
The volume of a prism is area of the base times height.
This is a triangular prism. The base is a triangle.
The volume is area of the base times height, and the base is a triangle.
Find the area of the triangle and multiply by the height of the prism.

V  = volume of the prism
A = area of the base
H = height of the prism
h = height of the triangle
b = base of the triangle

V = AH

V = (1/2)bhH

V = (1/2) * 9 ft * 7 ft * 15 ft

V = 472.5 ft^3
You might be interested in
18
Alex777 [14]

Answer:

Point Z

Step-by-step explanation:

Since the scale is one, first you go 0.5 to the left (-0.5 X) then you go 0.75 up (0.75 Y) then you have your answer.

8 0
1 year ago
Which statements are true about the locations of points A and B? Select all that apply. O Point A is at (0, -2). Point A is at (
elena-s [515]
The answer is "Point B is at (-8, -7)". let's remember that -8 represents the x-axis, and -7 represents the y-axis.
let me know if that helps !
3 0
3 years ago
Find the area of the shaded region. Please help! <br><br> Brainliest to who gets it right !
damaskus [11]
0.367 centimeters squared

7 0
3 years ago
In a college student poll, it is of interest to estimate the proportion p of students in favor of changing from a quarter-system
Contact [7]

Answer:

n=206

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{\hat p(1-\hat p)}{n}})

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by \alpha=1-0.99=0.01 and \alpha/2 =0.005. And the critical value would be given by:

t_{\alpha/2}=-2.58, t_{1-\alpha/2}=2.58

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And on this case we have that ME =\pm 0.09, we can use as prior estimate of p 0.5, since we don't have any other info provided, and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.09}{2.58})^2}=205.44  

And rounded up we have that n=206

3 0
3 years ago
Diagram does not make sence <br><br> 6 divided by 2/5 in a diagram
Aleksandr [31]

Answer:

I got 15.

Step-by-step explanation:

I used a calculator and 6 / (2/5) = 15

8 0
3 years ago
Read 2 more answers
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