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2 years ago

Perimeter and Area Geometry help, please don't comment if you aren't 100% sure. Will give Brainliest and upvote

Mathematics

2 answers:

Sonja [21]2 years ago

8 0

Square prism is nothing but a cube.
a = 6

Surface area of a cube = 6a²
= 6 × (6)²
= 6×6×6
= 216

miskamm [114]2 years ago

3 0

216 as it is the only one 6 divides into

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Pls help!!!

Effectus [21]

A is the correct choice

3 0

2 years ago

If a cylinder with height 9 inches and radius rr is filled with water, it can fill a certain pitcher. How many of these pitchers

katrin2010 [14]

Answer:

9 pitchers

Step-by-step explanation:

Given

Cylinder 1:

$Radius = r$

$Height = 9$

Cylinder 2:

$Radius = 3r$

$Height = 9$

Required

How many pitchers' cylinder 2 can fill

First, we calculate the volume of both cylinders

Volume is calculated as:

$Volume = \pi r^2h$

For A:

$V_A = \pi r^2*9$

$V_A = 9\pi r^2$

For B:

$V_B = \pi (3r)^2 * 9$

$V_B = \pi *9r^2 * 9$

$V_B = 9* 9\pi r^2$

In (a): $V_A = 9\pi r^2$

So, we have ve:

$V_B = 9*V_A$

$V_B = 9V_A$

<em>If the first cylinder can fill 1, then the second can fill 9 pitchers</em>

7 0

2 years ago

Test is worth 50 points; test score of 84% idk

aleksklad [387]

84% of 50 is 42. So if your test was graded out of 50 you would've gotten 42/50. If you multiply 50 by 2 (50x2), you have 100, so then you'd just divide the 84% by 2 so you'd get 42%

6 0

2 years ago

Read 2 more answers

/viewform?hr submission=Chclk4feKBIQ.

Gennadij [26K]

Answer:

c) .22

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this question:

$\sigma = 2.5, n = 500$

Then

$M = z*\frac{\sigma}{\sqrt{n}}$

$M = 1.96*\frac{2.5}{\sqrt{500}}$

$M = 0.22$

5 0

2 years ago

PLEASE HELP IMAGE BELOW WITH QUESTION!!!

RSB [31]

Answer:

Step-by-step explanation:

Because the base of the first is 6 and the second is 3 so 6/3 = 2

8 0

2 years ago

Read 2 more answers