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3 years ago

HELP NOW PLS !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 91 POINTS PIC BELOW

Mathematics

1 answer:

Leto [7]3 years ago

5 0

Answer:

For real?

Step-by-step explanation:

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you go to a school in a college town. You know there are 2000 students enrolled in school. You polled 100 and 60 are students wh

antoniya [11.8K]

Your answer would be1200. The average of 60/100, is 60/100 * 20 is 1200/2000.

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3 years ago

12 Write the decimal equivalent of the following: answer in the space. <br>2 5/8=_____

lidiya [134]

Answer:

2.625

Step-by-step explanation:

2 + 5/8

2 + .625 = 2.625

5/8 = .625

4 0

3 years ago

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Which shows the following expression using positive exponents?

Hitman42 [59]

Answer:

1. option B is correct i.e., $\frac{-3a^{7}b^3b^1}{15a^{2}}$

2. option D is correct i.e., $\frac{a^3b^4}{ab^2}$ .

3. option B is correct i.e., $\frac{n^{10}}{16m^{6}}$ .

Step-by-step explanation:

1. Since the given equation is:

$\frac{-3a^{-2}b^3}{15a^{-7}b^{-1}}$

As we know that $a^{-x}=\frac{1}{a^x}$

So, the given equation can be represented as:

$\frac{-3a^{7}b^3b^1}{15a^{2}}$

2. Given equation is:

$\frac{a^3b^{-2}}{ab^{-4}}$

As we know that $a^{-x}=\frac{1}{a^x}$

so the given equation can be represented as:

$\frac{a^3b^4}{ab^2}$ .

3. Given equation is:

$(\frac{4mn}{m^{-2}n^6})^{-2}$

by using the properties $a^{-x}=\frac{1}{a^x}$ ,

and $a^x\times a^y=a^{x+y}$

$(\frac{4mn}{m^{-2}n^6})^{-2}$

= $(\frac{4n^1n^{-6}}{m^{-2}m^{-1}})^{-2}$

= $(\frac{4n^{1+(-6)}}{m^{-2+(-1)}})^{-2}$

= $(\frac{4n^{-5}}{m^{-3}})^{-2}$

= $\frac{4^{-2}n^{-5\times (-2)}}{m^{-3\times (-2)}}$

= $\frac{n^{10}}{16m^{6}}$ .

which is option B.

5 0

3 years ago

Read 2 more answers

Brainliest to whoever gets it right first

Inga [223]

I just guessed and it is 108

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3 years ago

What is 108 as a fraction of 648? Give your answer in its simplest form.

geniusboy [140]

Answer:

The simplest form of 108/648 is 16

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3 years ago

Read 2 more answers