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3 years ago

10 POINTS (PLEASE PLEASE I BEG YOU HELP ME)

Mathematics

2 answers:

yulyashka [42]3 years ago

8 0

Answer:

give me points an d i will give u points

Step-by-step explanation: yufikdx

Dvinal [7]3 years ago

6 0

The area of the base would be 79 square ft.

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Mark up is 40% and the cost to store is 162 dollars what is the selling price

Vanyuwa [196]

Answer:

$64.8

Step-by-step explanation:

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3 years ago

Convert 13.025 to base 10

Lilit [14]

Answer:

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3 years ago

Everything was marked down 30%. The oringinal price of a manatee hat was $18. What was the clearence price

valentinak56 [21]

.3 * 18 = 5.4. 18-5.4 = 12.6$

Or

.7 * 18 = 12.6$

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3 years ago

The Wall Street Journal reported that automobile crashes cost the United States $162 billion annually (2008 data). The average c

ivanzaharov [21]

Answer:

$n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94$

So the answer for this case would be n=94 rounded up to the nearest integer

Step-by-step explanation:

Information given

$\bar X$ represent the sample mean

$\mu$ population mean (variable of interest)

$\sigma= 500$ represent the population standard deviation

n represent the sample size

Solution to the problem

The margin of error is given by this formula:

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

And on this case we have that ME =120 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

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

The confidence2 level is 98% or 0.98 then the significance level would be $\alpha=1-0.98=0.02$ and $\alpha/2=0.01$ , the critical value for this case would be $z_{\alpha/2}=2.326$ , replacing into formula (b) we got:

$n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94$

So the answer for this case would be n=94 rounded up to the nearest integer

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3 years ago

Corinnes puppy eats 3 meals a day. How many meals does the puppy eat in 32 days

kvasek [131]

Corinne's puppies eat 92 meals in 32 days.

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3 years ago