All categories

3 years ago

If f(x) and f^-1(X) are inverse functions of each other and f(x)=2x+5, what I f^-1(8)

Mathematics

1 answer:

podryga [215]3 years ago

3 0

Answer: 3/5

Step-by-step explanation:

First, you need to find the inverse of f(x)=2x+5 .

$f-1(x)= \frac{x}{2} -\frac{5}{2}$

Then, you'd plug in 8 into that equation, which I got $\frac{3}{5\\}$

Hope this helps :)

You might be interested in

Which statements are true of the pyramid shown? Check all that apply. A. The base area is 54 ft2. B. The lateral area is 223.95

marishachu [46]

the answer is 54 ft2 and 343.95 ft2

Hope this helps!

8 0

4 years ago

Read 2 more answers

Quadrilateral ABCD is inscribed in the circle. If m∠A = 95°, what also must be true?

Shalnov [3]

When a quadrilateral is inscribed in a circle, the sum of opposite angles is 180 degrees.

A+C=180
95+C=180
C=180-95
C=85

Therefore the answer is B). I hope this helped.

3 0

3 years ago

Read 2 more answers

Who ever answers this I will mark as brainliest

Pani-rosa [81]

Answer: uhhhhhh pass

Step-by-step explanation:

5 0

3 years ago

150 is 100% of what number?

andriy [413]

Answer:

150 is 100% of 150

Steps to solve "150 is 100 percent of what number?"

We have, 100% × x = 150

or,

100

× x = 150

Multiplying both sides by 100 and dividing both sides by 100,

we have x = 150 ×

100

x = 150

If you are using a calculator, simply enter 150×100÷100, which will give you the answer.

3 0

2 years ago

Triangle ABC is such that AB = 3cm , BC = 4cm , angle ABC = 120 and BAC = theta : Write down in terms of theta , and expression

lakkis [162]

1)inside the triangule is 180º .There are 3 angules, one with 120º, theta and
angle ACB, lets call it x.

x + theta + 120 = 180
x + theta= 180-120
x + theta= 60
x= 60- theta
angle ACB= 60- theta

8 0

4 years ago