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bagirrra123 [75]
3 years ago
8

EXPERTS/ACe/GENIUSES Ill mark as brainlist if correct

Mathematics
1 answer:
katrin2010 [14]3 years ago
3 0
It's probably the first one: "People responded to Earth Day with letters..."
Since it's more of a detail that supports a fact, it's not as important as the other three.
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What is the monthly payment on a 15-year loan of $72,700 if the annual interest rate is 12%?
Trava [24]

Answer:

sorry this is for points

Step-by-step explanation:

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5 0
3 years ago
A survey in Men’s Health magazine reported that 39% of cardiologists said that they took vitamin E supplements. To see if this i
zzz [600]

Answer:

z=\frac{0.36 -0.39}{\sqrt{\frac{0.39(1-0.39)}{100}}}=-0.615  

The p value for this case would be:

p_v =2*P(z  

For this case since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not different from 0.39

Step-by-step explanation:

Information given

n=100 represent the random sample taken

X=36 represent the number of people that take E supplement

\hat p=\frac{36}{100}=0.36 estimated proportion of people who take R supplement

p_o=0.39 is the value that we want to test

\alpha=0.05 represent the significance level

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true proportion is equatl to 0.39 or not, the system of hypothesis are.:  

Null hypothesis:p=0.39  

Alternative hypothesis:p \neq 0.39  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info we got:

z=\frac{0.36 -0.39}{\sqrt{\frac{0.39(1-0.39)}{100}}}=-0.615  

The p value for this case would be:

p_v =2*P(z  

For this case since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not different from 0.39

8 0
3 years ago
Please find the missing side of this triangle
umka21 [38]

Answer:

The answer is 8.30

Step-by-step explanation:

Using cos 41 = x/11

x = cos 41 × 11

x = 8.30

4 0
3 years ago
Please answer 1-5 i will give brainiest and 40 points
sergij07 [2.7K]

Answer:Okay I'm really confused

Step-by-step explanation:

5 0
3 years ago
What is 2(4+39) in a solved equation
BartSMP [9]
2(4+39) = 39 + 4 = 43
43 x 2 = 86
8 0
3 years ago
Read 2 more answers
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