3 years ago

Suppose that nine is a factor of a number which statement has to be true

1 answer:

6 0

Since 9 is a factor of an unknown number, that means that that number has to be a multiple of 9. If 9 is the factor of something then that something HAS to be a multiple of 9.

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Which class has a ratio of girls to total students of 7:10?

Damm [24]

Answer:

Step-by-step explanation:

The total class is 10

the number of girls is 7

ratio of girls to total students - 7:10

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2 years ago

Square root of 55 to the nearest integer

MariettaO [177]

The nearest integer is 7 because the nearest perfect square root is 49. Answer is 7-8

5 0

3 years ago

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Which polynomial identity will prove that 19 = 27 − 8?

3241004551 [841]

The answer is Difference of Cubes.

Difference of cubes is a³ - b³.
27 can be written as 3³ (= 3 × 3 × 3 = 27). So, a = 3.
8 can be written as 2³ (= 2 × 2 × 2 = 8). So, b = 2.

Difference of cubes can be expressed as:
a³ - b³ = (a - b)(a² + ab + b²)
⇒ 3³ - 2³ = (3 - 2)(3² + 3×2 + 2²) = 1 × (9 + 6 + 4) = 1 × 19 = 19
⇒ 27 - 8 = 19

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3 years ago

I don't know what to do

Zarrin [17]

Check the picture below

use the far-arc near-arc equation

bear in mind, your far-arc and near-arc are both in y-terms, so, the angle will be in y-terms as well

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3 years ago

What are these numbers from least to greatest? 5.78, -5.9, 58%, -23/4

Feliz [49]

Answer:

-5.9, -23/4, 58%, 5.78

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3 years ago

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