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
uysha [10]
2 years ago
7

Given f(x) = 7xº, find f^-1 (x). Then state whether f^-1(x) is a function.

Mathematics
1 answer:
Slav-nsk [51]2 years ago
6 0

Answer:

a) (x/7)^1/9=y

Step-by-step explanation:

f(x) = 7x^9

x/7= 7y^9/7

(x/7)^1/9=(y^9)^1/9

(x/7)^1/9=y

f^-1(x) is a fuction because it passes the vl test

You might be interested in
A rectangle with a length of 6 inches and a width of 1 foot has a perimeter of 14 inches.
Pachacha [2.7K]
The length is 6 inches.
The width is 1 foot = 12 inches.

The perimeter is  (6 + 12 + 6 + 12) = 36 inches (3 feet) .

"14 inches" is false.
7 0
2 years ago
To make 4.5 cups of fruity granola, the recipe calls for 1.5 cups of raisins, 1 cup of granola, and 2 cups of blueberries. If yo
Levart [38]

Answer:

you need 6 cups of raisins, 4 cups of granola and 8 cups of blueberries.

Step-by-step explanation:

<u>Step 1: Find how much raisins are needed</u>

<em>For 4.5 cups of fruity granola, we need 1.5 cups of raisins</em>

<em>For 18 cups of fruity granola, we need y cups of raisins</em>

4.5 : 1.5

18 : y

<em>Cross multiply</em>

4.5y = 1.5 x 18

y = 27/4.5

y = 6 cups of raisins

<u>Step 2: Find how much granola is needed</u>

<em>For 4.5 cups of fruity granola, we need 1 cup of granola</em>

<em>For 18 cups of fruity granola, we need y cups of granola</em>

4.5 : 1

18 : y

<em>Cross multiply</em>

4.5y = 18

y = 4 cups of granola

<u>Step 3: Find how much blueberries are needed</u>

<em>For 4.5 cups of fruity granola, we need 2 cups of raisins</em>

<em>For 18 cups of fruity granola, we need y cups of blueberries</em>

4.5 : 2

18 : y

<em>Cross multiply</em>

4.5y = 2 x 18

y = 36/4.5

y = 8 cups of blueberries

Therefore, in order to make 18 cups of fruity granola, you need 6 cups of raisins, 4 cups of granola and 8 cups of blueberries.

5 0
3 years ago
Sarah baby-sat 7 times as many hours during summer break as she did during spring break. She baby-sat a total of 56 hours during
kotykmax [81]
I wanna say the answer could be 8
3 0
3 years ago
Read 2 more answers
Can you help me with this problem please
Over [174]

Remark

I think you want us to do both 3 and 4


Three

QR is 4 points going left from the y axis + 2 points going right from the y axis.

QR = 6 units long.


RT is 4 units above the x axis and 3 units below the x axis

RT = 7 units long


TS = 3 units. For this one you just go from T to S. The graph really helps you. You just need to count.


Problem 4

You need to find the area of the combined figure. You could do it as a trapezoid, which might be the easiest way. I'll do that first.


Area = (b1 + b2)*h/2


Givens

B1 = QR = 6

B2 = UT + TS = 6 + 3 = 9

h = RT = 7


Area

Area = (6 + 9)*7/2

Area = 15 * 7 / 2

Area = 52.5


Comment

You could break this up into a rectangle + a triangle

Find the area of QRTU and add the Area of triangle RTS


<em>Area of the rectangle </em>= L * W

L = RT = 7

W = QR = 6

Area = 7 *6 = 42


<em>Area of the triangle</em> = 1/2 * B * H

B = TS = 3

H = RT =7

Area = 1/2 * 3 * 7

Area = 1/2 * 21

Area = 10.5


Total Area = 42 + 10.5 = 52.5 Both answers agree.

3 0
3 years ago
Help! Need help. Not good with this.
PIT_PIT [208]
The first answer is 7.7

the second one is 137.5
8 0
3 years ago
Read 2 more answers
Other questions:
  • How would i solve this problem 2x-5=4x-1?
    15·2 answers
  • Fiona spent $13.70 to travel across the city in a taxi. It cost her $3.25 to get the taxi and $2.75 each mile she traveled. Writ
    12·2 answers
  • I just snack store 7/12 of the customers bought pretzels and 3/10 of those customers bought low salt pretzels. Bill states that
    10·1 answer
  • CAn you please answer this ASAP. Thank you soooooo much:)
    12·1 answer
  • Which expression has a value of two-third
    12·1 answer
  • Plz help due tomorrow
    6·2 answers
  • A store manager earns
    13·2 answers
  • Simplify cos theta tan theta
    5·1 answer
  • Have a good day Jesus loves you !!!
    9·2 answers
  • PLZZZ HELP ME
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!