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
zubka84 [21]
3 years ago
15

Please help me! I'm stuck...

Mathematics
1 answer:
Vanyuwa [196]3 years ago
7 0
If we are trying to find x then it is 21
all you have to do is set them equal to each other
so (4x+3)=87
let me know if I need to explain more
You might be interested in
certain electronics manufacturer found that the marginal cost C to produce x DVD/Blu- ray players can be found using the equatio
AleksAgata [21]

Answer:

242.

Step-by-step explanation:

C = 0.03 x 2 − 8 x + 700

When the marginal cost = $522 we have:

522 = 0.03 x 2 − 8 x + 700

0.03x^2 - 8x + 700 - 522 = 0

0.03x^2 - 8x + 178 = 0

Using the quadratic formula:

x =  [ -(-8) +/- sqrt( 64 - 4 * 0.03 * 178)] / 0.06

= 8 +/- sqrt42.64 / 0.06

= 242  players.

8 0
3 years ago
Which is the graph of f(x)<br> = 4(1/2)x? <br><br> PLEASE HELP ME
Natali5045456 [20]

Answer:

4 (\frac{1}{2} )x \\  = 2x

hopefully can help

4 0
3 years ago
Please help on this question. Thank you
Mandarinka [93]

A y<=3x +2

Step-by-step explanation:

Because is shade under so is small than

Than it is not doted line is a full line so is a equal

So answer is small than or equally to

3 0
3 years ago
HURRY ASAP PLEASE <br> Which of the following is the inverse
zloy xaker [14]

Let y = f(x)

Let cr = cube root for short

y = cr{3x} + 2

Switch x and y.

x = cr{3y} + 2

Solve for y.

x - 2 = cr{3y}

Raise both sides to the 3rd power.

(x - 2)^3 = [cr{3y}]^3

(x - 2)^3 = 3y

[(x - 2)^3]/3 = y

Replace y with the inverse function notation

f^(-1) x.

f^(-1) x = [(x - 2)^3]/3

Choice b is the answer.

5 0
3 years ago
Rhode Island has a population of about 60,000 8th graders in the state. New Jersey has a total of 920,000 8th graders. Calculate
seropon [69]

Answer:

8.6 × 10^5

Step-by-step explanation:

New Jersey 8th graders = 920,000

Rhode island 8th graders = 60,000

Difference in Rhode island 8th graders and New Jersey 8th graders population

= 920,000 - 60,000

= 860,000

Answer in scientific notation

860,000

The decimal point will move 5 places in

= 8.6 × 10^5

8 0
4 years ago
Other questions:
  • Answer correctly and brainliest
    5·1 answer
  • Question: Consider the equation x2 + y2 – 10x + 6y = 15. A. Complete both squares in the equation. Show your work. B. Which coni
    7·1 answer
  • Put this in greatest to least: 1/8, 1/2, 1/4, 1/12, and 1/3?
    9·2 answers
  • Mega Movies hosted a film premiere on Friday night. They charged $9 for adults and $6 for children. One hundred thirty-nine adul
    14·2 answers
  • Help me with the image i posted
    13·2 answers
  • NEED ASAP BEFORE MARCH 2021
    5·2 answers
  • A parking lot charges $2 per hour for the first 4 hours
    12·2 answers
  • A sector of a circle has an arc length of π cm and a central angle of π6 radians. What is the area of the sector?
    9·1 answer
  • What are the domain and range of the function f(x)=3/4x+5?
    9·1 answer
  • V (1) = 65t+280, where time , in minutes,.the pump has been on .
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!