3 years ago

A student would like to estimate the mean length of words in a book report he just finished writing. He selects a

Mathematics

1 answer:

professor190 [17]3 years ago

6 0

Answer:

statistic

Step-by-step explanation:

because its calculated

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Richard practice each of three piano solos for 5/12 hour expressed in simplest form how long did he practice in all

kkurt [141]

5/12 hour = 1 piano solo's
15/12 hour = 3 piano solo's

Simplifying 15/12 hours we get:
1.25 hours also known as 1 hour 15 minutes

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3 years ago

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mrs_skeptik [129]

The answer is B.

Explanation:

If you divide exponents, you subtract the exponents.

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3 years ago

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harina [27]

A true

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The gcf of two numbers less than or equal to 12 is 2. Their LCM is 20.What are the numbers?

bixtya [17]

We know:

$LCM(a,\ b)=\dfrac{ab}{GCF(a,\ b)}$

We have

$GCF(a,\ b)=2,\ LCM(a,\ b)=20,\ a\leq12,\ b\leq12$

Substitute:

$20=\dfrac{ab}{2}\qquad|\cdot2\\\\ab=40$

$40=1\cdot40=2\cdot20=4\cdot10=5\cdot8$

Only 4 and 10 meet the requirements of the question.

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

40 and 1 NOT, because 40 > 12

20 and 2 NOT, because 20 > 12

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IRINA_888 [86]

Answer:

Think it is D I am not sure

Step-by-step explanation:

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