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1 year ago

15

LOOK AT THE PICTURE BELOW PLEASE!

1 answer:

Brrunno [24]1 year ago

4 0

Answer:

50

Step-by-step explanation:

Each question is 6%/3 = 2% worth. If each question is worth 2% then total questions must be 50 (cuz that would be 2% x 50 (total question) = 100%).

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What is the end behavior of the graph of the polynomial function y = 7x12 – 3x8 – 9x4?. . x -> ___ y->__ and as x-> ___

kumpel [21]

We are given with the polynomial above and is asked to evaluate the end behavior of the function. The end behavior of a polynomial function is the behavior of the graph<span> of f ( x ) as x approaches positive infinity or negative infinity. As x approaches negative infinity, the function goes to negative infinity while when x</span> approaches positive infinity, the function goes to <span>positive</span> infinity

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2 years ago

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3 years ago

Find the value of x.<br> 132<br> (5x + 7)<br><br> A. 25<br> B. 45<br> C. 35<br> D. 15

loris [4]

A. 25
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2 years ago

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An object weighs 55.54 newtons. What is its mass if a gravitometer indicates that g = 9.83 m/s2?

Ksivusya [100]

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3 years ago

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A class survey in a large class for first-year college students asked, “About how many minutes do you study on a typical weeknig

Anika [276]

Answer: (110.22, 125.78)

Step-by-step explanation:

The confidence interval for the population mean is given by :-

$\mu\ \pm z_{\alpha/2}\times\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size = 463

$\mu=118\text{ minutes}$

$\sigma=65\text{ minutes}$

Significance level : $\alpha=1-0.99=0.01$

Critical value : $z_{\alpha/2}=z_{0.005}=\pm2.576$

We assume that the population is normally distributed.

Now, the 90% confidence interval for the population mean will be :-

$118\ \pm\ 2.576\times\dfrac{65}{\sqrt{463}} \\\\\approx118\pm7.78=(118-7.78\ ,\ 118+7.78)=(110.22,\ 125.78)$

Hence, 99% confidence interval for the mean study time of all first-year students = (110.22, 125.78)

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3 years ago