3 years ago

Solve -9/2y = 27/2 for y

Mathematics

1 answer:

slavikrds [6]3 years ago

4 0

Answer: y = -3

I hope this helps you

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A number x is more than -6 and at most 8. Write it in a inequality

geniusboy [140]

-6<x≤8 would be the inequality

5 0

3 years ago

Consider H0: μ = 45 versus H1: μ < 45. A random sample of 25 observations produced a sample mean of 41.8. Using α = .025 and

a_sh-v [17]

Given
$H0: \ \mu=45 \\ \\ H1: \ \mu\ \textless \ 45$
This is a one-tailed test.

$z= \frac{41.8-45}{6/ \sqrt{25} } = \frac{-3.2}{6/5} = \frac{-3.2}{1.2} =-2.6667$

$P(z\ \textless \ -2.6667)=0.00383$

Since the p-value of the sample statistic (0.00383) is less that the significant level (0.025), we reject the null hypothesis.

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3 years ago

What us the average rate of change

Pepsi [2]

the rate of change is -2 for every set shown in the chart on the right

so 6 to 7 would be -11 -2 = -13

7 to 8 would be -13-2 = -15

8 to 9 = -15-2 = -17

B is the answer

6 0

3 years ago

Marta exercises 30 minutes each day Greg exercises 40 minutes a each day how many more minutes does Greg exercise than Marta in