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3 years ago

Which expression represents the greatest common factor (GCF) of 16 and 40? A. 2 x 2 B. 2 x 2 x 3 C. 2 x 2 x 5 D. 2 x 2 x 2

Mathematics

2 answers:

vesna_86 [32]3 years ago

5 0

Answer:

D. 2 x 2 x 2

Step-by-step explanation:

16 is: <u>2 x 2 x 2</u> x 2

40 is: <u>2 x 2 x 2 </u>x 5

16 and 40 have in common are: 2 x 2 x 2

astraxan [27]3 years ago

4 0

Answer:

D. 2 x 2 x 2

Step-by-step explanation:

I took the quiz, and it was correct. :)

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According to a recent study, 9.3% of high school dropouts are 16- to 17-year-olds. In addition, 6.4% of high school dropou

Finger [1]

Answer:

0.688 or 68.8%

Step-by-step explanation:

Percentage of high school dropouts = P(D) = 9.3% = 0.093

Percentage of high school dropouts who are white = $P(D \cap W)$ = 6.4% = 0.064

We need to find the probability that a randomly selected dropout is white, given that he or she is 16 to 17 years old. This is conditional probability which can be expressed as: P(W | D)

Using the formula of conditional probability, we ca write:

$P(W | D)=\frac{P(W \cap D)}{P(D)}$

Using the values, we get:

P( W | D) = $\frac{0.064}{0.093} = 0.688$

Therefore, the probability that a randomly selected dropout is white, given that he or she is 16 to 17 years old is 0.688 or 68.8%

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3 years ago

What is the square root of -1?

asambeis [7]

Answer:

The answer would be 1, whenever you square a negative number you should just input it as positive. The answer would be the same.

Step-by-step explanation:

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3 years ago

What is C=6/6+12*180

frozen [14]

C=2161
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6 0

3 years ago

Read 2 more answers

An employer with 500 employees gives out gives out 120 surveys but receives only 90 surveys completed by the employees. What are

leva [86]

Answer:

Population 120 given the survey, sample 90 who answered the survey.

Step-by-step explanation:

The entire amount of employees who even received the surveys at all was 120. Because the total number was 120, 120 is the population.

Only 90 out of 120 surveys were received, so 90 is the sample because it is part of 120.

Hope this helps :)

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3 years ago

Jonathan deposited $10,000 into a new savings account with a simple interest rate of 3.8%. If account has earned $2,470 in inter

vichka [17]

Answer:

6.5 years

Step-by-step explanation:

the amount depositited times percent diveded by the intrest is the years

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3 years ago