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3 years ago

Solve the equation , (x+ 7)+3y

Mathematics

2 answers:

Marta_Voda [28]3 years ago

7 0

I guess we are simplify it the answer is x + 3y+7 and if not rearranging terms it x+7+3y

postnew [5]3 years ago

3 0

Answer:

Step-by-step explanation:

3y + x +7

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A researcher is investigating a government claim that the unemployment rate is less than 5%. To test this claim, a random sample

DerKrebs [107]

Answer:

The test statistic for this hypothesis test for a proportion is z=1.90.

Step-by-step explanation:

This is a hypothesis test for a proportion.

The claim is that the unemployment rate is less than 5%.

Then, the null and alternative hypothesis are:

$H_0: \pi=0.05\\\\H_a:\pi$

The sample has a size n=1500.

The sample proportion is p=0.061.

$p=X/n=92/1500=0.061$

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.05*0.95}{1500}}\\\\\\ \sigma_p=\sqrt{0.000032}=0.0056$

Then, we can calculate the z-statistic as:

$z=\dfrac{p-\pi-0.5/n}{\sigma_p}=\dfrac{0.061-0.05-0.5/1500}{0.0056}=\dfrac{0.0107}{0.0056}=1.90$

8 0

4 years ago

Your baseball team has a goal to collect at least 160 blankets for a shelter. Team members brought 42 blankets on monday and 65

Alisiya [41]

Y=160-(65+42). so it's 53

4 0

4 years ago

Read 2 more answers

By first calculating the size of angle LMN,

Naily [24]

Step-by-step explanation:

Hope it helps.... that is how I did it

4 0

3 years ago

P(X|Y)= ????? have no clue what im doin

GenaCL600 [577]

Answer:

what's your question......

6 0

4 years ago

Brainlyess

inn [45]

Answer:

I think it is B because it represents the amount of trail mix and the no. of pound bought is increase

Step-by-step explanation:

first plot a xy on the graph and make a number in the graph like 2468 and Mark 2.50 in the graph and the question says that it is buying meor and income will also be more and draw a line as answers of B

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3 years ago