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Slav-nsk [51]
2 years ago
8

Find the cosine of ∠D.

Mathematics
1 answer:
Alina [70]2 years ago
8 0

Answer:

5/13

Step-by-step explanation:

Using SOHCAHTOA

Cosine of D = adjacent / hypotenuse

Cosine of D = 5 / 13

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An engineer was supposed to draw a line exactly 7/10 centimeters long. An error was made, and he drew the line 9/10 centimeters
Paha777 [63]

Answer:

2/10 or 1/5 if you want it simplified

Step-by-step explanation:

9/10 is basically 9 and 7/10 is 7 so 9 - 7 is 2 and we need to add the /10 back so it's 2/10 or 1/5

7 0
2 years ago
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7 0
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Given: g(x) = Vx – 4 and h(x) = 2x – 8.<br> What is g(h(10))?
Iteru [2.4K]

Answer:

g(h(10)) = 43

Step-by-step explanation:

Given: g(x) = 4x – 4 and h(x) = 2x – 8.

We are to find g(h(10))

First we need to get g(h(x))

g(h(x)) = g(2x-8)

Replace x in g(x) with 2x-8 as shown:

g(2x-8) = 4(2x-8)-4

g(2x-8)= 8x-32-5

g(2x-8) = 8x-37

Hence g(h(x)) = 8x-37

g(h(10)) = 8(10)-37

g(h(10)) = 80-37

g(h(10)) = 43

Hence g(h(10)) is 43

6 0
3 years ago
Urgent help needed!
zalisa [80]

To write this in standard form, you need to eliminate the fraction in the coefficient of variable x. You can do this by multiplying 8 to the two sides of the equation:

8(y) = 8[(-5/8)x + 3]

8y = -5x + 24

Transpose the variable x to the other side:

5x + 8y = 24        

 

 

6 0
3 years ago
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