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Roman55 [17]
3 years ago
7

Blake has 864 square inches of material with which to create a hollow three-dimensional container. He decides to make either a c

ube or a sphere.
Which solid would have the greater volume? What is the greatest volume he can achieve with this amount of material?

Mathematics
1 answer:
leonid [27]3 years ago
4 0

Answer:

I think it's a cube, because the cube has bigger spaces because of the edges, but I don't know how much...

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g A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam. We ar
BaLLatris [955]

Answer:

The test statistic is z = 1.25

Step-by-step explanation:

We are interested in determining whether or not the proportion of the student who experience anxiety during the exam is significantly more than 80%.

At the null hypothesis, we test if the proportion is 80%, that is:

H_0: p = 0.8

At the alternate hypothesis, we test if the proportion is more than 80%, that is:

H_a: p > 0.8

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

80% is tested at the null hypothesis:

This means that \mu = 0.8, \sigma = \sqrt{0.2*0.8} = 0.4

A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam.

This means that n = 100, X = \frac{85}{100} = 0.85

The test statistic is

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.85 - 0.8}{\frac{0.4}{\sqrt{10}}}

z = 1.25

The test statistic is z = 1.25

4 0
3 years ago
Use a net to find the surface area of the cylinder use 3.14 for pi
telo118 [61]

Answer:

3.14

Step-by-step explanation:

7 0
3 years ago
What is 5x÷68y×45-12x <br><br><br><br>soooo does anybody wanna talk im board​
Phoenix [80]

Answer:

sure (✿^‿^)

Step-by-step explanation:

。◕‿◕。

Hi! how are you?

4 0
2 years ago
61. A survey asked students what classes they
IRISSAK [1]

Answer:

63 students.

Step-by-step explanation:

x students.

34 have science 28 have math 5 math and science 6 neither.

6 neither means there were at least 6 students so our number goes up to 6 students.

34 have science 28 have math 5 have both.

34-5 and 28-5

29 and 23

29+23 is 52 +5 is 57 +6 is 63.

63 students.

HOpe this helps!

Merry Christmas!

4 0
3 years ago
Read 2 more answers
Quis mode Easy<br>hasil dari<br>T²⁵⁴÷T²⁴³=​
Natasha2012 [34]

Answer:

T²⁵⁴÷T²⁴³=

T²⁵⁴-²⁴³=

=T¹¹

done and thank you

7 0
2 years ago
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