2 years ago

9 ÷ 9 × (8 × 2) ANSWER FASTTTTTT

Mathematics

2 answers:

uysha [10]2 years ago

8 0

Answer:

Step-by-step explanation:

schepotkina [342]2 years ago

7 0

16

8 x 2 = 16
9/9 = 1
16 x 1 = 16

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Hatshy [7]

Idk math but I can sell come thru for that low

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3 years ago

An advertising agency that serves a major radio station wants to estimate the mean amount of time the station’s audience members

Flura [38]

Answer:

$n=(\frac{1.645(45)}{5})^2 =219.18 \approx 220$

So the answer for this case would be n=220 rounded up to the nearest integer

Step-by-step explanation:

Information given

$\sigma = 45$ represent the population deviation

$ME = 5$ represent the margin of error

The margin of error for the true mean is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =5 and we are interested in order to find the value of n, if we solve n from equation (4) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The critical value for 90% of confidence interval now can be founded using the normal distribution. The significance level is $\alpha=1-0.9=0.1$ and the critical value would be $z_{\alpha/2}=1.645$ , replacing into formula (b) we got:

$n=(\frac{1.645(45)}{5})^2 =219.18 \approx 220$

So the answer for this case would be n=220 rounded up to the nearest integer

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3 years ago

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Brilliant_brown [7]

Answer:

No solution

Step-by-step explanation:

I hope it helps

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3 years ago

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Which of these numbers is a solution to this problem: X is greater than 9?

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X = 12, because there is only one answer that has a number bigger than 9 :)

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