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3 years ago

0.16 as a fraction in simplest form

Mathematics

1 answer:

Vesnalui [34]3 years ago

7 0

.16 = 16/100
16/100, you divide both the numerator and denominator by 4 or GCF
16/100 = 4/25.

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Which one correct pls help and thanks

erastova [34]

I think it’s b because x when it’s alone is one i think

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4 years ago

In 2009 a survey of Internet usage found that 79 percent of adults age 18 years and older in the United States use the Internet.

Alex777 [14]

Answer:

$0.025 = 2.33\sqrt{\frac{0.79*0.21}{n}}$

Option d.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

79 percent of adults age 18 years and older in the United States use the Internet.

This means that $\pi = 0.79$

98% confidence level

So $\alpha = 0.02$ , z is the value of Z that has a pvalue of $1 - \frac{0.02}{2} = 0.99$ , so $Z = 2.33$ .

Which of the following should be used to find the sample size (n) needed?

We have to find n for which $M = 0.025$

So the equation is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.025 = 2.33\sqrt{\frac{0.79*0.21}{n}}$

Option d.

4 0

3 years ago

The cube root of a number is 2. Write an equation, using x, that represents this situation.

Kay [80]

Answer:

x - 8 = 0

Step-by-step explanation:

Since, the cube root of a number is 2.

Let the number be x.

Therefore,

$\sqrt[3]{x} = 2 \\ cubing \: both \: sides \\ {( \sqrt[3]{x})}^{3} = {(2)}^{3} \\ x = 8 \\ x - 8 = 0$

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3 years ago

The cost of renting a speedboat can be represented by the expression 50x + 250, where x is the number of hours it is rented. Fac

WITCHER [35]

Answer:

50(x+5)

Step-by-step explanation:

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3 years ago

Read 2 more answers

August is making dinner for 8 people. She opens 7 cans of soup. Each can is 16 ounces. If everyone gets the same amount of soup,

pshichka [43]

Answer:

14oz soup/ person

Step-by-step explanation:

the answer would be 14oz of soup/person

multiply 7 (cans of soup) by 16 (oz per can)

7*16=112

divide 112 (oz of soup total) by 8 (number of people feeding)

112/8=14

8 0

3 years ago