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
Dominik [7]
4 years ago
7

If f(x) = 2x + 5 what is f -1(x) ?

Mathematics
1 answer:
Norma-Jean [14]4 years ago
5 0

Answer:

f^-1 (x) = 1/2x -5/2

Step-by-step explanation:

To find the inverse of a function, exchange x and y and then solve for y

y = 2x+5

Exchange x and y

x = 2y+5

Solve for y

Subtract 5 from each

x-5 = 2y+5-5

x-5 = 2y

Divide by 2

(x-5)/2 = 2y/2

1/2x - 5/2 = y

f^-1 (x) = 1/2x -5/2

You might be interested in
NEED ANSWER ASAP!!! THANKS!!
kap26 [50]

The Boy: 4.4 x 60 = 264ft per minute.  264 / 3 = 88yrds Per minute

The Fish: 12 x 5280 = 63360ft hr. 5280 / 60 = 1056ft minute 1056 / 3 = 352yrds

352 - 88 = 44 yards quicker then the boy.

44 x 3 = 132 feet quicker then the boy.

3 0
3 years ago
Read 2 more answers
Solve x/12+1/3=5/6 please help me resolve
viktelen [127]

Subtract 1/3 from both sides

x/12 = 5/6 - 1/3

Simplify 5/6 - 1/3 to 1/2

x/12 = 1/2

Multiply both sides by 12

x = 12 × 12

Simplify 1/2 × 12 to 12/2

x = 12/2

Simplify 12/2 to 6

<u>x = 6</u>

4 0
3 years ago
Ann had 48 fliers to post around town. Last week, she posted 2/3 of them. This week, she posted 3/8 of the remaining fliers. How
IrinaK [193]

Answer:

Ann had 48 fliers to post around town

Last week, she posted 2/3 of them

48 \times  \frac{2}{3}  = 32 \\

Therefore, she should posted 32 fliers

This week, she posted 3/8 of the remaining fliers

48 \times  \frac{3}{8}  = 18 \\

Therefore, she should posted 18 fliers

Total fliers she should post are (32+18)=50 fliers

She still did not post (50-48)= <u>2 fliers</u>

<h3><em><u>2 fliers </u></em>is the right answer.</h3>
4 0
3 years ago
Michael deposits $35,000 today in his bank account. calculate the approximate amount he will have at the end of six years if int
NNADVOKAT [17]
Compound interest is given by:
A=p(1+r/(100*n))^(nt)
where;
A=future amount
p=principle amount=$35,000
r=rate=10%=0.1
n=number of terms=2
t=time=6
Hence,
A=35,000(1+0.05)^(2*6)
A=35000(1.05)^12
A=$62,854.97
The amount of money after 6 years will be $62,854.97
3 0
3 years ago
Which of the following best represent the graph of the inequality shown below?
zmey [24]

Answer:

B) x>-3

Step-by-step explanation:

B) x>-3

8 0
3 years ago
Other questions:
  • A number between 61 and 107 that is a multiple of 4 6 and 9
    8·2 answers
  • If 8 people share a half pound of pasta how much would each get​
    13·2 answers
  • Mai conducted an experiment by flipping a fair coin 200 Times
    12·1 answer
  • What is the Absolute value of -45?
    7·1 answer
  • Evaluate each of the following expressions for x = 16 and y = 4.
    11·1 answer
  • Steel Factory Workers Ages
    6·2 answers
  • How would you find the midpoint between these points?? A(-4, 6) and B(2,8)​
    9·2 answers
  • Can anyone solve this?
    15·1 answer
  • What is the surface area of a cube with a side length of 5 yards?
    11·1 answer
  • Can someone help me out with the first 3 please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!