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Mice21 [21]
2 years ago
9

Find the slope of the line.

Mathematics
2 answers:
lawyer [7]2 years ago
7 0

Answer:

-3/5

   

m= y2-y1/x2-x1

m= -2-1/ 2+3

m= -3/5

Elanso [62]2 years ago
4 0

y = -0.6x – 0.8

√34 = 5.8309518948453

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A and B are complementary angles. If mA=(x+8)° and mB =(8x+1),<br> find the measure of A
Black_prince [1.1K]

Answer:

\angle A=17\textdegree

Step-by-step explanation:

We know that A and B are complementary angles. So, they must add up to 90°. As an equation:

\angle A+\angle B=90

Since we know their equations, substitute:

(x+8)+(8x+1)=90

Solve for x. Combine like terms on the left:

9x+9=90

Subtract 9 from both sides:

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Divide both sides by 9:

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So, the value of x is 9.

We want to find A. So, let's use the equation for A:

\angle A=x+8

Substitute 9 for x:

\angle A=9+8

Add:

\angle A=17\textdegree

So, the measure of A is 17°.

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