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xxTIMURxx [149]
3 years ago
10

If 3 times a number minus 2 equals 13, what is the number? A. 5 B. 2 C. –6 D. 4

Mathematics
1 answer:
Ivenika [448]3 years ago
4 0
3x - 2 = 13

Add 2 on both sides

3x - 2 + 2 = 13 + 2
3x = 13 + 2
3x = 15

Divide both sides by 3.

3x/3 = 15/3

x = 15/3

x = 5

Your final answer is A. 5.
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For f(x) = √x-3 find f(f^-1(4))
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Answer:

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Step-by-step explanation:

f⁻¹(x) = x²+3, but none of that matters, since f(f⁻¹(x)) = x

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2 years ago
Susan has a 12-inch board for constructing a wooden chair.The directions say to use a board that is 29 centimeters long.Id her b
Advocard [28]

We have been given that Susan has a 12-inch board for constructing a wooden chair.The directions say to use a board that is 29 centimeters long. We are asked to determine if Susan's board is long enough to cut or not.

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Let us convert 12 inches into cm by multiplying 12 by 2.54.

12\text{ inches}=12\times 2.54\text{ cm}

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6 0
2 years ago
If tan of angle theta = 11/60 , what is the value of cot angle theta?
UkoKoshka [18]
The tangent and cotangent functions of the angle are related such that one is the reciprocal of the other. From the given tan theta = 11 / 60. The reciprocal of this number is 60 / 11. This value is also the cotangent of the angle. Thus, the cotangent angle theta is 60 / 11. 
5 0
3 years ago
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SVEN [57.7K]
3(4x-5)+4(2x+6)

Distribute.

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24-15= 9

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I hope this helps!
~kaikers
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