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wlad13 [49]
2 years ago
13

Which expression is equivalent to -9a-10-6a+7−9a−10−6a+7

Mathematics
1 answer:
Gwar [14]2 years ago
6 0

Answer:

−30a−6

Step-by-step explanation:

Let's simplify step-by-step.

−9a−10−6a+7−9a−10−6a+7

=−9a+−10+−6a+7+−9a+−10+−6a+7

Combine Like Terms:

=−9a+−10+−6a+7+−9a+−10+−6a+7

=(−9a+−6a+−9a+−6a)+(−10+7+−10+7)

=−30a+−6

BRAINLIEST. if you don't mind.

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SOMEONE PLEASE PLEASE HELP ME
slava [35]

Answer:

taking cos

co62=b/h

cos 62=x/12

0.46947x12=x

so, x = 5.633

rounding off

x= 6

6 0
3 years ago
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2(x – 2) + 6 = 0 <br> can anyone tell me the answer with steps please
Andrews [41]

Answer:

x = -1

Step-by-step explanation:

2(x – 2) + 6 = 0

~Distribute left side

2x - 4 + 6 = 0

~Combine like terms

2x + 2 = 0

~Subtract 2 to both sides

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~Divide 2 to both sides

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Best of Luck!

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3 years ago
What is the y-intercept of the line given by the equation y=4.2x - 6.3
Ipatiy [6.2K]

Answer:

-6.3

Step-by-step explanation:

4.2x, if x = 0, then y = -6.3

4 0
2 years ago
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ivolga24 [154]

Answer:

21

Step-by-step explanation:

f(x) = 2x^2 - x

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3 0
3 years ago
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If A ABC ~ ARST and m 2 A = 42°, m 2 C = 60°,<br> find the measure of &lt; S.
Free_Kalibri [48]

Answer:

78

Step-by-step explanation:

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42 + ∠B + 60 = 180

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In similar triangles, corresponding angles are congruent.

∠S ≅ ∠B

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7 0
2 years ago
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