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3 years ago

11

Find the volume of a rectangular prism with a length of x + 9, a width of x – 7, and a height of x – 1. What is its volume expre

ssed as a polynomial? please hurry

1 answer:

saveliy_v [14]3 years ago

7 0

I believe the answer is x^3+x^2-65x+63

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Find the square root of 291600 by prime factorization

yarga [219]

Answer:

540

Step-by-step explanation:

I honestly put it in my calculator and squared it,

291600

/ \

540 540

you have a pair, you don't have to do anything else, and you're done

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3 years ago

On the graph of an exponential function representing growth, what happens to the slope of the graph? The slope ________.

Marina CMI [18]

In an exponential graph, the slope of the graph
increases. This can be explained by seeing the bacterial
growth as an example. The lag phase has an almost zero
slope which then increases to the highest value of slope
during the exponential phase.

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4 years ago

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The names of all of the states in the United States are placed in a bag. One name is drawn from the bag. What is the theoretical

victus00 [196]

Answer:

1/50

Step-by-step explanation:

5 0

3 years ago

You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you beli

zhuklara [117]

Answer:

We need to sample at least 1069 parents.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.9}{2} = 0.05$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.05 = 0.95$ , so $z = 1.645$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

How many parents do you have to sample?

We need to sample at least n parents.

n is found when $M = 4, \sigma = 79.5$ . So

$M = z*\frac{\sigma}{\sqrt{n}}$

$4 = 1.645*\frac{79.5}{\sqrt{n}}$

$4\sqrt{n} = 1.645*79.5$

$\sqrt{n} = \frac{1.645*79.5}{4}$

$(\sqrt{n})^{2} = (\frac{1.645*79.5}{4})^{2}$

$n = 1068.92$

Rounding up

We need to sample at least 1069 parents.

6 0

3 years ago

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Does anyone know how to solve these

masha68 [24]

Answer:

e=49

f=131

d=90

Step-by-step explanation:

3 0

3 years ago