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
WARRIOR [948]
2 years ago
9

Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (

3x – 4) feet, (x2 – 1) feet, and (2x2 – 15) feet. What is the perimeter of the triangle if x = 4?
Mathematics
1 answer:
oksano4ka [1.4K]2 years ago
7 0

3(4^2) + 3(4) - 20

3(16) +12 - 20

48 - 8

=40

The perimeter is 40 feet

You might be interested in
Chris is working on math homework. He solves the equation m/6=48 and says that the solution is m=8. Do you agree or disagree wit
vredina [299]

Chris is incorrect. To check the answer, replace m with 8 and simplify the left side. So m/6 turns into 8/6 which converts to the decimal value 1.333 (use a calculator)

Therefore the original equation m/6 = 48 becomes 1.333 = 48 after you plug in m = 8 and simplify fully. The two sides of 1.333 = 48 are not the same, so m = 8 is not the solution.

--------------------

The solution is actually 288 and we can prove it so like this

m/6 = 48

288/6 = 48 .... replace m with 288

48 = 48 .... use a calculator to compute 288/6

So the solution m = 288 is confirmed

------------------

How did I get this answer? By multiplying both sides by 6

m/6 = 48

6*(m/6) = 6*48 ..... multiply both sides by 6

m = 288

So Chris mistakenly divided both sides by 6, which explains how he got 48/6 = 8 as the solution. Instead he should have multiplied both sides by 6. This is to undo the operation "divide by 6" that is being applied to m in the original equation.

7 0
3 years ago
Express the following rate as a rate.
mixas84 [53]
So u do 63/3 so that is 21
6 0
3 years ago
Read 2 more answers
Vera went to the local salon to get a haircut. The cost of was $24. Vera tipped the hair stylist 18%. What was the total cost of
jarptica [38.1K]

Answer:

28.32$

Step-by-step explanation:

18% of 24 = 24*18/100=4.32$

Total: 24+4.32=28.32$

Have a good day

4 0
2 years ago
Equation equivalent to 5x(3x+4)
Vika [28.1K]

use the distributive property

5x(3x+4)

15x^2 +20x

7 0
3 years ago
Read 2 more answers
Max correctly solved this inequality.
pentagon [3]

Answer:

Answer:

See the graph attached. The red arrow represents the shaded area.

Explanation:

The inequality and its solution are given:

     

The solution set is all real numbers less than or equal to -50.

In a number line, the values less than -50 are all the values that are to the left of -50. Thus, the graph of a ≤ -50 must include -50 and the region to the left of it.

To indicate that - 50 is included, draw a solid point; then, shade the region since it to its left.

Please, see the graph attached. The red arrow represents the shaded area.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • What's the surface area?
    5·1 answer
  • An inchworm ran into a log while on his way to the raspberry patch. The diameter of the log is 32 cm. How far did the inchworm t
    8·2 answers
  • Choose the correct answer. A symbol that represents an unknown number that could take on a variety of possible values is _______
    14·1 answer
  • Tyson multiplies 75 by 1.15. Which number might Tyson be trying to find?
    14·2 answers
  • The triangle shown here appears to be, A) acute.
    9·2 answers
  • I need help ASAP for geometry!
    10·1 answer
  • In a condominium complex, 2/3 of the women are married to 3/4 of the women. What part of the entire population is married? Pleas
    13·1 answer
  • Why is it not possible to form a right triangle with the lengths 2, 4 and 7?
    11·2 answers
  • Use the number line to solve each problem. <br><br>What is KL?​
    12·1 answer
  • Unit circle to find exact value of sin 180 degree
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!