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
ivann1987 [24]
3 years ago
13

If f(x) and f⁻¹(x) are inverse functions of each other and f(x)=2x+5, what is f⁻¹(8)?

Mathematics
1 answer:
dexar [7]3 years ago
3 0

Answer:

3/2.

Step-by-step explanation:

f(x)=2x+5   Finding the inverse:

y = 2x + 5

2x = y - 5

x = (y - 5)/2

So the inverse f-1(x) = (x - 5)/2

and f-1(8) = (8-5)/2

= 3/2.

You might be interested in
A smartphone costs ​$120. Sales tax is 5​%. What is the total​ cost, including​ tax?
miv72 [106K]

Since 100% = $120,

105% = $126.

3 0
3 years ago
How long will it take a bus to travel 825 miles at a rate of 55 mph
liubo4ka [24]

Answer:

8,.5 hours

Step-by-step explanation:

.

3 0
2 years ago
Read 2 more answers
consider this system of linear equations: y = –3x 5 y = mx b which values of m and b will create a system of linear equations wi
Blizzard [7]
No solution means that the lines are paralell and have differnt y intercepts

paralell means has same slope

y=mx+b
m=slope
b=yint

given equation is
y=-3x+5
slope=-3
yint=5

paralell so
y=-3x+b
wher b is any number except 5
example
y=-3x+4
y=-3x+√3
y=-3x-π

basically

m=-3
b=any number except 5
7 0
3 years ago
Read 2 more answers
How do I solve 4(5(6))<br><br> This is a hypothetical question
SSSSS [86.1K]
PEMDAS states that the value in the parenthesis should be evaluated first:
4(5*6)
4(30)
After just multiply the value in the parenthesis by the number outside of the parenthesis:
120
6 0
3 years ago
Read 2 more answers
You think that the distance between your house in a friends house is 5.5 miles the actual distance is 4.75 miles what is the per
fredd [130]
Its about 13.64% multiply 4.75 by 100 then divide by 5.5 then subtract that number from 100
3 0
3 years ago
Other questions:
  • What is the APR of a payday loan for $1100 due in 5 days that charges a $165 fee?
    14·2 answers
  • 0.1m+8-12n when m=30 and n=1/4
    14·2 answers
  • Which expression represents the product of 83 and x
    7·2 answers
  • A vendor sells fifteen sweatshirts for $15 each, thirty t-shirts for $10 each, and forty hats for $8 each. What is the average p
    11·1 answer
  • What does y equal if 5x+y=40
    7·1 answer
  • I dont understand this plz help.
    15·2 answers
  • What will be the smallest and largest no that when rounded off to thousand their answer is
    11·2 answers
  • Solve for the variable b -1/2 ( b - 6 ) =6
    15·2 answers
  • Which Choices are equivalent to the expression below? check all that apply. 6(x+3)-5x
    11·1 answer
  • Use the subtraction method to solve the system of equations. Choose the correct ordered pair. 2x-y=6
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!