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3 years ago

The price trends of two laptop brands M and N are given by the functions

1 answer:

8 0

PM after 10 months is priced at 3650
pN after 10 months is priced at 4000

I hope you can answer your question with that! :)

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You rent an apartment that costs $1300 per month during the first year, but the rent is set to go up 7.5% per year. What would b

Serjik [45]

If I did the math right, the answer would around 3,552.89. Hopefully this was helpful.

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2 years ago

What is 0.5 as a fraction in simplest form

Aloiza [94]

Answer:

1/2

Step-by-step explanation:

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3 years ago

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At the Tucson Zoo, Jason spends $6.00 to enter the zoo and $2.00 per animal to feed them. Meanwhile, at the Phoenix Zoo, Kim spe

shtirl [24]

Answer:

3 animals

Step-by-step explanation:

combine like terms

6 + 2x = 15 + x
-6 + x - 6 - x

--------------------------

3x = 9

2. divide both sides by 3

3x/ 3 = 9/3
x = 3

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2 years ago

Geometry math question please help

sineoko [7]

The answer to ur question is option(B.) a circle inscribed inside the triangle....
Hope this helps u....!!

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2 years ago

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A fast food restaurant executive wishes to know how many fast food meals teenagers eat each week. They want to construct a 99% c

Lana71 [14]

Answer:

The minimum sample size required to create the specified confidence interval is 2229.

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:

$\alpha = \frac{1-0.99}{2} = 0.005$

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 $1-0.005 = 0.995$ , so $z = 2.575$

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.

What is the minimum sample size required to create the specified confidence interval

This is n when $M = 0.06, \sigma = 1.1$

$0.06 = 2.575*\frac{1.1}{\sqrt{n}}$

$0.06\sqrt{n} = 2.575*1.1$

$\sqrt{n} = \frac{2.575*1.1}{0.06}$

$(\sqrt{n})^{2} = (\frac{2.575*1.1}{0.06})^{2}$

$n = 2228.6$

Rounding up

The minimum sample size required to create the specified confidence interval is 2229.

7 0

3 years ago