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aliya0001 [1]
3 years ago
8

3×-7 equivalent expressions A. -21 B. 4 C. -4 D. 21

Mathematics
1 answer:
USPshnik [31]3 years ago
6 0

Answer:

-21

Step-by-step explanation:

3x7=21 and a negative x a positive is always negative

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Find the slope of the line graphed in the diagram and choose the correct answer from the choices below. The two intercepts are (
kolezko [41]

1.2 is the slope of the line graphed in the given diagram

<u>Step-by-step explanation:</u>

We can use the given points (0, 3) and (-2.5, 0) to solve.

Slope formula is given by

             \text { slope, } m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Given two intercepts:

\left(x_{1}, y_{1}\right)=(0,3) \text { and }\left(x_{2}, y_{2}\right)=(-2.5,0)

By substituting these in the slope equation, we get

     \text { slope, } m=\frac{0-3}{-2.5-0}=\frac{-3}{-2.5}=\frac{3}{2.5}=1.2

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3 years ago
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7 0
3 years ago
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Bond [772]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
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9a-18b+21c apply distributive property to factor out gcf of all three terms
horsena [70]
The GCF of the three terms (9a, -18b and 21c) is 3

Rewrite each of the terms so 3 is a factor
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So we can say...
9a - 18b + 21c = 3*3a - 3*6b + 3*7c
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If you distribute outer 3 to each of the inner terms and multiply, you'll get the original expression again.

3 0
3 years ago
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