3 years ago

If f(x)=3x, what is f^-1(x)?

2 answers:

5 0

Answer: f-1(x) = x/3 + 5/3

Step-by-step explanation: The inverse function is found by replacing the independent variable with the dependent variable and vice versa like so

f(x) = 3x-5 becomes x = 3y-5; now we solve for y

3y = x +5 or y = x/3 + 5/3

Therefore the inverse function becomes: f-1(x) = x/3 + 5/3

-BARSIC- [3]3 years ago

3 0

Answer: -1(x)] = x

Step-by-step explanation:

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A=1/4 and b=6. −8ab=

podryga [215]

Answer:

When $a=\frac{1}{4}$ and $b=6$ :

$-8ab=-12$

Step-by-step explanation:

-8ab can be seen as -8×a×b. Insert the given values:

$-8*\frac{1}{4} *6$

Simplify multiplication from left to right:

$-8*\frac{1}{4} \\\\\frac{-8}{1} *\frac{1}{4} =\frac{-8}{4} =-2$

Insert and solve:

$-2*6=-12$

:Done

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3 years ago

Which of the following sets of ordered pairs represents a function?

allsm [11]

Answer:
A

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8 0

2 years ago

A rectangle has an area of 240 square meters and a width of 15 meters.

fredd [130]

Area is found by taking the length time width or A=lw

240=L x 15 divide both sides by 15

Length = 16 meters

3 0

3 years ago

Need help on this question too hard :((

andrew-mc [135]

Answer:

2/3

Step-by-step explanation:

Convert the fractions to decimals.

2/3 = 0.666

4/5 = 0.8

14/18 = 0.777

34/50 = 0.68

From the decimals, 0.666 is the only option which falls between 0.5 and 0.75.

5 0

3 years ago

Which of the following is equivalent to the expression 8x+30/10?

densk [106]

8x+30/10
Simplify the Problem
8x+3

5 0

3 years ago