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3 years ago

-12=-2(2-8) Is it true false or an open sentence

2 answers:

7 0

The statement is false because when you use distributive property, you get -12=-4+16 and when you add 16 to -4, you'll get 12, not -12, making the statement false.

pochemuha3 years ago

5 0

False because -12 does not equal -6

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Lelechka [254]

Answer:

1. 1.6

2. 1.5

3.1.3

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3 years ago

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a hot tub pump circulate 4 cubic feet of water per minute, how many cubic inches of water does it circulate earch minute?

Shtirlitz [24]

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2 years ago

A class of 40 students took a test 20 students had an average score of 65. the other students had an average score of 52. what i

Korolek [52]

Answer:

One: 58.5

Two 36.6

Step-by-step explanation:

One

20 students * 65 = 1300 This is the total score of all 20 students. They may not all get 65, but 1300 is what their average total is.

20 students * 52 = 1040

The total score of all 40 students was 1300 + 1040 = 2340

The average for the entire class was 2340 / 40 = 58.5

Two

This question is done almost the same way.

Supposes the total number of members is 100. That means that 28 of them are men

28 * 33 = 924 This is the total age for the men

100 - 28 = 72 Out of 100, 72 of the people there are women.

72 * 38 = 2736

The total number of years of all of the members is

924 + 2736 = 3660

The average age of all members is 3660/100 = 36.6

Why did I pick 100 as the total membership? It is because a percentage is number out of 100. Am I allowed to invent things like that? Sure. I'm just using the definition of a percentage.

The average will make it come out the same.

7 0

3 years ago

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Sergeeva-Olga [200]

The answer is sometimes

5 0

3 years ago

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TRUE or FALSE: Every number raised to a negative exponent will have a value smaller than 1. Explain your reasoning.

Sveta_85 [38]

Answer:

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

Every number raised to a negative exponent will have a value smaller than 1.

This is False statement

<h3><u>Reason</u><u> </u><u>:</u><u>-</u></h3>

It will only be negative if the number is negative with an odd exponent.
what you're actually doing is dividing instead of multiplying.

<h3>For Example:-</h3>

$\sf 4^2=16 \\ But \\ \sf 4^{-2}={\dfrac {1}{16}}$

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3 years ago