3 years ago

Which expressions simplify to -3k – 8?

Mathematics

2 answers:

trasher [3.6K]3 years ago

8 0

Answer:

A,D

Step-by-step explanation:

-6k -6 +3k -2 =-3k-8

7k +6 -10k-14 =-3k-8

natita [175]3 years ago

5 0

Answer:

the answers are a and d

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If we start at the point (1,0) and travel once around the unit circle, we travel a distance of 2 pi units and arrive back where

PolarNik [594]

Answer:

-1

Step-by-step explanation:

We evaluate $\sin(2\pi+3\pi/2)$

In $2\pi+3\pi/2$ , $2\pi$ is a complete revolution and is the same as 0. So we have

$\sin3\pi/2 = \sin(\pi+\pi/2)$

One $\pi$ is a half revolution, putting the point at (-1, 0). $\pi/2$ is a quarter of a revolution. A quarter circle from (-1, 0) anticlockwise is (0, -1).

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2 years ago

9(2a – b)2 – 4(2a – b) – 13

elena-s [515]

18(2a-b)-4(2a-b)-13
=36a-18b-8a+4b-13
Rearrange
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=28a-14b-13

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3 years ago

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MatroZZZ [7]

Answer:

Step-by-step explanation:

5 0

3 years ago

What is the difference of the two expressions shown below (3/4X+2)-(1/4x+5). Explain why

Nostrana [21]

Answer:

D. 1/2x - 3

Step-by-step explanation:

(3/4x + 2) - (1/4x + 5) =
3/4x - 1/4x + 2 - 5 =
2/4x - 3 =
1/2x - 3

Correct choice is D

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2 years ago

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Norma-Jean [14]

Answer:

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Step-by-step explanation:

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2 years ago