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zaharov [31]
2 years ago
15

Solve for x: 3x -1 = -10

Mathematics
1 answer:
kap26 [50]2 years ago
5 0

Answer: x= -3

Step-by-step explanation: If you plug in the number, -3, and multiply it by 3, you get -9. After you get -9, you subtract it by -1, which makes -10. -10=-10.

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5+2+1 =8

5+2=7

7/8

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Compute the amount of interest earned in the following simple interest problem. A deposit of $4,500 at 5% for 3 years:
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Which of the following pairs of functions are inverses of each other?
AnnyKZ [126]

Answer:

Step-by-step explanation:

Rearrange each function to solve for x.

Switch x and y,

The resulting equation is the inverse function.

A:

f(x) = y = 5+x

x = y-5

y = x-5

f⁻¹(x) = x-5

g(x) = 5-x ≠ f⁻¹(x)

g(x) is not the inverse of f(x).

:::::

B:

f(x) = y = 2x-9

x = (y+9)/2

y = (x+9)/2

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g(x) = (x+9)/2 = f⁻¹(x)

g(x) is the inverse of f(x).

:::::

C:

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x = 2/(y+6)

y = 2/(x+6)

f⁻¹(x) = 2/(x+6)

g(x) = (x+6)/2 ≠ f⁻¹(x)

:::::

D:

f(x) = y = x/3 + 4

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y = 3x - 12

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g(x) is not the inverse of f(x).

4 0
2 years ago
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