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Bas_tet [7]
3 years ago
15

M−4=2m what's the value of m

Mathematics
2 answers:
MAXImum [283]3 years ago
5 0
M would equal four, I believe
romanna [79]3 years ago
4 0

Answer:

m=-4

Step-by-step explanation:

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] It is claimed that 42% of US college graduates had a mentor in college. For a sample of college graduates in Colorado, it was
Bad White [126]

Answer:

z=\frac{0.480 -0.42}{\sqrt{\frac{0.42(1-0.42)}{1045}}}=3.930  

The p value for this case would be given by:

p_v =P(z>3.930)=0.0000443  

For this case the p value is lower than the significance level so then we have enough evidence to reject the null hypothesis so then we can conclude that the true proportion is significantly higher than 0.42

Step-by-step explanation:

Information given

n=1045 represent the random sample selected

X=502 represent the college graduates with a mentor

\hat p=\frac{502}{1045}=0.480 estimated proportion of college graduates with a mentor

p_o=0.42 is the value that we want to test

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true proportion is higher than 0.42, the system of hypothesis are.:  

Null hypothesis:p \leq 0.42  

Alternative hypothesis:p > 0.42  

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{0.480 -0.42}{\sqrt{\frac{0.42(1-0.42)}{1045}}}=3.930  

The p value for this case would be given by:

p_v =P(z>3.930)=0.0000443  

For this case the p value is lower than the significance level so then we have enough evidence to reject the null hypothesis so then we can conclude that the true proportion is significantly higher than 0.42

7 0
3 years ago
Find the value of x when lines w and v are parallel.
VladimirAG [237]

Answer: B. 17

Step-by-step explanation:

4x-3 = 65

Add 3 on both sides

4x = 68

Divide by 4 on both sides

x = 17

BOOM!

4 0
3 years ago
Read 2 more answers
Can anyone help me do the slope for this?
d1i1m1o1n [39]

Answer:

The value of the slope is 4

The meaning of the slope is y/x

Step-by-step explanation:

5 0
2 years ago
4.521x10^1 in scientific notation
Vikki [24]

Answer:

if you are asking for the real number, the answer would be 45.21

Step-by-step explanation:

We simply multiply by 10 since we are given 1 as an exponent

3 0
2 years ago
Evaluate.<br> 8(19−6⋅2)<br> Enter your answer in the box.
Molodets [167]

Answer:

102.4

Step-by-step explanation:

Open the bracket

19-6.2=12.8

8(12.8)

8*12.8=102.4

5 0
2 years ago
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