1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Crazy boy [7]
3 years ago
15

Find f-1(x) if f(x) = 4x + 5.​

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
8 0

Answer:

f^{-1}(x) = \frac{x-5}{4}

Step-by-step explanation:

let y = f(x) and rearrange making x the subject.

y = 4x + 5 ( subtract 5 from both sides )

y - 5 = 4x ( divide both sides by 4 )

\frac{y-5}{4} = x

Change y back into terms of x

f^{-1}(x) = \frac{x-5}{4}

Anton [14]3 years ago
3 0

Answer:

(x - 5)/4

Step-by-step explanation:

y = 4x + 5

Make x the subject

x = (y - 5)/4

Interswitch x and y

(f^-1)(x) = (x - 5)/4

You might be interested in
The elevation of Mt. Everest is 29,028 feet. The elevation of the Dead Sea is –485 feet. What is the difference in the elevation
navik [9.2K]

Answer:

28,543

Step-by-step explanation:

If we take the height of Mt. Everest (29,028) and the height of the Dead sea (-485) and subtract we get the `answer of 28,543.

6 0
3 years ago
Read 2 more answers
Select correct answer
Sergio [31]

Answer:

The values of p in the equation are 0 and 6

Step-by-step explanation:

First, you have to make the denominators the same. to do that, first factor 2p^2-7p-4 = \left(2p+1\right)\left(p-4\right)2p

2

−7p−4=(2p+1)(p−4)

So then the equation looks like:

\frac{p}{2p+1}-\frac{2p^2+5}{(2p+1)(p-4)}=-\frac{5}{p-4}

2p+1

p

−

(2p+1)(p−4)

2p

2

+5

=−

p−4

5

To make the denominators equal, multiply 2p+1 with p-4 and p-4 with 2p+1:

\frac{p^2-4p}{(2p+1)(p-4)}-\frac{2p^2+5}{(2p+1)(p-4)}=-\frac{10p+5}{(p-4)(2p+1)}

(2p+1)(p−4)

p

2

−4p

−

(2p+1)(p−4)

2p

2

+5

=−

(p−4)(2p+1)

10p+5

Since, this has an equal sign we 'get rid of' or 'forget' the denominator and only solve the numerator.

(p^2-4p)-(2p^2+5)=-(10p+5)(p

2

−4p)−(2p

2

+5)=−(10p+5)

Now, solve like a normal equation. Solve (p^2-4p)-(2p^2+5)(p

2

−4p)−(2p

2

+5) first:

(p^2-4p)-(2p^2+5)=-p^2-4p-5(p

2

−4p)−(2p

2

+5)=−p

2

−4p−5

-p^2-4p-5=-10p+5−p

2

−4p−5=−10p+5

Combine like terms:

-p^2-4p+0=-10p−p

2

−4p+0=−10p

-p^2+6p=0−p

2

+6p=0

Factor:

p=0, p=6p

7 0
3 years ago
Read 2 more answers
48% of what number is 108? A. 44.4 B. 51.84 C. 225 D. 5184
Ivan
Let the number = x.

48% of x = 108

(48/100)x = 108

x  =  108 * 100 /48  = 225          use your calculator.

Answer is option C.

8 0
3 years ago
Read 2 more answers
EASY MATH<br> Find all the zeros of f(x)= x^3 − 6x^2 + 13x − 20 given that 1−2i is a zero.<br> x=
Oduvanchick [21]

Answer:

there is only one zero

Step-by-step explanation: and if it easy why you didint do it just ascking

3 0
2 years ago
The expression (3x^3y^2)^3is equivalent to
dsp73

Answer:

The expression is equivalent to 27 x⁹ y⁶.

Step-by-step explanation:

Please mark me brainliest, if I helped.

8 0
2 years ago
Other questions:
  • Which of the following is a terminating decimal?
    14·1 answer
  • Use the sum of cubes identity to find the factors of the expression <img src="https://tex.z-dn.net/?f=8x%5E%7B6%7D%20%20%2B27y%5
    13·1 answer
  • Express the function y(t)= 4 sin 2πt + 15 cos 2πt in terms of (a) a sine term only. (b) Determine the amplitude, the period, the
    8·2 answers
  • I need the answer ASAP
    13·1 answer
  • Help??<br> How would I solve this to get my answer? Help please
    10·1 answer
  • PLEASE HURRY!!!!!!!!!!1
    13·2 answers
  • DIVISON PLEASE HELP AHHHH I HAVE PHOTO
    13·2 answers
  • Can you guys help i’m kinda struggling
    14·1 answer
  • Below is the table of values of a function. Write the output when the input is n.
    15·1 answer
  • Which of the following choices is equivalent to the equation?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!