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3 years ago

What's the reciprocal of 3 over 5?

Mathematics

1 answer:

dimulka [17.4K]3 years ago

3 0

5/3 because the reciprocal is the fraction flipped around.

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4p = 6(4p + 5)<br><br>what is the value of p?

mamaluj [8]

1- expand
4p= 24p + 30
2- move 24p to the other side
4p-24p=30
-20p=30
3- Divide
P= -3/2
Hope this helped!

6 0

3 years ago

365/12 divide it.................................pls help me

Talja [164]

Answer:

30.42 (if rounded to the tenths place)

Step-by-step explanation:

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3 years ago

You work for a marketing firm that has a large client in the automobile industry. You have been asked to estimate the proportion

quester [9]

Answer:

The sample size must be approximately 1067 to get a margin of error of 0.03.

Step-by-step explanation:

We are given the following in the question:

Margin of error = 0.03

Significance level = 5%

Margin of error =

$z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

Since, no prior proportions are given, we take

$\hat{p} = 0.5$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get,

$0.03 = 1.96\sqrt{\dfrac{0.5(1-0.5)}{n}}\\\\\sqrt{n} = \dfrac{1.96\times 0.5}{0.03}\\\\\\sqrt{n} = 32.67\\n = 1067.3289\approx 1067$

Thus, the sample size must be approximately 1067 to get a margin of error of 0.03.

3 0

3 years ago

Given f(x)= x3 and g(x) = 2x + 7, express<br> (fºg)(x)'as a function of x.

vodomira [7]

Answer:

(f∘g)(x)=(2x+7)^3

Step-by-step explanation:

substitute g(x) in f(x)

(f∘g)(x)=f(g(x))=f(2x+7)=(2x+7)^3=(2x+7)^3

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2 years ago

Without subtracting 8.5-4.64, determine what digit will be in the hundredths place. Explain.

Fofino [41]

Answer:

Step-by-step explanation:

8.5 can also be written as 8.50. If you take the digits in the hundredths place, 10 and 4, and subtract them, you get 6.

8 0

3 years ago