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Gala2k [10]
2 years ago
13

Solve for the value of d.

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

9°

Step-by-step explanation:

In the given diagram we see that both the angles are complementary i.e. they form an angle of 90°

So therefore,

According to the question

(6d + 8) + (3d + 1) = 90

=  > 9d = 90 - 8 - 1

=  > 9d =  81

=  > d =  \frac{81}{9}

=  > d = 9

Answer - d = 9°

Hope it helps you!!

#IndianMurgaツ

serg [7]2 years ago
5 0

Answer:

d is 9

Step-by-step explanation:

(6d+8) + (3d+1)=90

9d +9=90

9d=90-9

9d =81

d=81/9

d is 9

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28.) c.

29.) a and c.

30.) a.

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b.

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Step-by-step explanation:

28.)

pounds is equal to the y value of a graph, while months is equal to the x value of the graph. slope is equal to y/x. Therefore, it is the slope.

29.) rearrange the equation to isolate the y value and then divide every equation by 2. you will then get y=4x+8. When you plug each of the points in, you will notice only a and c are true.

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b.

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Hope this helps!

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