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pychu [463]
2 years ago
14

I need help!!! ASAP!!!! !!!!!

Mathematics
1 answer:
GalinKa [24]2 years ago
3 0

Answer:

1.

Volume= 729cm^3

Height= 9cm^2

Area of Base= 81cm^2

2.

Volume=450m^3

Height= 3m^2

Area of Base=150m^2

3.

Volume= 480 cm^2

Area of base=75cm^2

Height= 8cm^2

4.

Volume =120in^3

Area of Base=20in^2

Height= 6in^2

Step-by-step explanation:

Volume = (length) Times (Width) Times (Height)

Area os base = (Length) Times (width)

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Suppose that, in the past, 40% of all adults favored capital punishment. Do we have reason to believe that the proportion of adu
Alex_Xolod [135]

Answer:

The p-value of the test is 0.1469 > 0.05, which means that there is no reason to believe that the proportion of adults favoring capital punishment today has increased, using a 0.05 level of significance.

Step-by-step explanation:

Suppose that, in the past, 40% of all adults favored capital punishment. Test if the proportion has increased:

At the null hypothesis, we test if the proportion is still of 40%, that is:

H_0: p = 0.4

At the alternative hypothesis, we test if the proportion has increased, that is, is greater than 40%, so:

H_1: p > 0.4

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.

0.4 is tested at the null hypothesis:

This means that \mu = 0.4, \sigma = \sqrt{0.4*0.6}

Random sample of 15 adults, 8 favor capital punishment.

This means that n = 15, X = \frac{8}{15} = 0.5333

Value of the test statistic:

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

z = \frac{0.5333 - 0.4}{\frac{\sqrt{0.4*0.6}}{\sqrt{15}}}

z = 1.05

P-value of the test and decision:

The p-value of the test is the probability of finding a sample proportion of 0.5333 or more, which is 1 subtracted by the p-value of z = 1.05.

Looking at the z-table, z = 1.05 has a p-value of 0.8531.

1 - 0.8531 = 0.1469.

The p-value of the test is 0.1469 > 0.05, which means that there is no reason to believe that the proportion of adults favoring capital punishment today has increased, using a 0.05 level of significance.

3 0
2 years ago
LeAnn wants to.giftwrap a present she got for her little brother. How many square inches of.giftwrap will be needed to cover a b
sergiy2304 [10]
In all you will need 48 square inches of gift wrap. 4*6= 24 and 24*2= 48
4 0
3 years ago
Read 2 more answers
The charts show the effect of an interest rate adjustment on an adjustable-rate mortgage.
Tcecarenko [31]

Answer:

C. a higher monthly payment.

Step-by-step explanation:

<h3>Answer options:</h3>

Rate adjustment resulted in

<u>A. a lower interest rate. </u>

  • No, interest rate increased from 0.4 to 0.5 percent

<u>B. a higher principal. </u>

  • No, principal decreased from $200000 to $187000

<u>C. a higher monthly payment. </u>

  • Yes, monthly payment increased from $1059.85 to $1162.56

<u>D. a higher number of payments.</u>

  • No, number of payments remained as 336
3 0
3 years ago
What is the mean of the following set of numbers? 32, 31, 37, 44 a. 13 b. 34 c. 36
ELEN [110]
Mean is average

so we have 4 numbers
sum them then divide by 4

(32+31+37+44)=144
divide by 4
144/4=36

answer is C
6 0
3 years ago
How many juice glasses, each having a capacity of
sashaice [31]

Answer: 16 Juice Glasses

Step-by-step explanation:

2 Liters of Juice = 2000 Milliliters of Juice

2000 mL/125 mL = 16 Juice Glasses

3 0
3 years ago
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