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
Alex777 [14]
3 years ago
15

For the function f(x)=x+9/7-4x find f^-1(x)

Mathematics
1 answer:
Liula [17]3 years ago
3 0

Answer:

Step-by-step explanation:

f(x)=\frac{x+9}{7-4x} \\put ~f(x)=y\\flip~x~and~y\\f(y)=x\\y=f^{-1}(x)\\y=\frac{x+9}{7-4x} \\flip~x~and~y\\x=\frac{y+9}{7-4y} \\x(7-4y)=y+9\\7x-4xy=y+9\\-4xy-y=9-7x\\or\\4xy+y=7x-9\\y(4x+1)=7x-9\\y=\frac{7x-9}{4x+1} \\or~f^{-1}(x)=\frac{7x-9}{4x+1}

You might be interested in
15) The diameter of a sphere is 10 in. What is the sphere's volume? Round to the nearest tenth, if necessary.
motikmotik
The answer is Letter D
5 0
3 years ago
Round 10.676 to the nearest hundredth
Taya2010 [7]

Answer:

10.68

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
URGENT please help<br><br> Find part B
lyudmila [28]

Answer:

b = 45 / 4 = 11 1 /4.

Step-by-step explanation:

We are dealing with a (30,60,90)-triangle, therefore z = 15 sqrt(3) / 2. So as well b = (15 sqrt(3) / 2) sqrt(3) / 2 = 45 / 4.

3 0
3 years ago
What is the measure of each angle in the circle?<br><br> 30°<br> 90°<br> 72°<br> 60°
klio [65]

Answer:

72°

Step-by-step explanation:

The circle is divided into 5 parts.

A circle measures 360°.

360/5 = 72°

hope this helps!! p.s. i really need brainliest :)

6 0
2 years ago
Read 2 more answers
I need to solve this can anyone solve this?
xenn [34]

Answer:

d = 7

Step-by-step explanation:

7 times 5 = 35

or

35/5 = 7

4 0
3 years ago
Other questions:
  • Joe walked 5.3 miles last week. This week he walked 7.029 miles. How many miles has Joe walked in total?
    10·1 answer
  • Let u=ln x and v = ln y. Write ln y^7/x^5 in terms of u and v.
    6·2 answers
  • What is the formula for the following arithmetic sequence?
    11·2 answers
  • What is the area of a triangle with a =25, b =13, and c =17?
    10·1 answer
  • One of the factors of x² -<br> x – 6 is How do i work this out on paper?
    7·2 answers
  • What is the polygon called?
    10·1 answer
  • Find the midpoint of the line segment with end coordinates of:<br> (-3,-1) and (-4,2)
    12·1 answer
  • Help needed ASAP will give brainliest and 5 STARS VOTE RATE
    14·2 answers
  • What is the surface area of this triangular prism?
    9·1 answer
  • Someone answer please and thank you! No photos please those are blocked for me!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!