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
VashaNatasha [74]
3 years ago
13

Simplify: (7x2 − 8x − 4) + (−2x2 + 3x + 5) + (5x2 − 10x − 8)

Mathematics
1 answer:
mash [69]3 years ago
3 0
(7x² − 8x − 4) + (-2x² + 3x + 5) + (5x²<span> - 10x - 8) =
</span>7x² − 8x − 4 - 2x² + 3x + 5 + 5x² - 10x - 8 =
10x² -15x -7
You might be interested in
I’m sure this is easy but i'm gonna ask anyway
Arada [10]
No, it's always okay to ask if you don't understand a question.  Anyway, for this problem, we just have to plug in the value for <em>V </em>to solve for <em>P</em> :

P = 4V^{ \frac{1}{3}} \\ P = 4(125)^{ \frac{1}{3}}

A number to the power of 1/3 is the same as taking a cube root.

P = 4(125)^{ \frac{1}{3}} \\ P = 4(5) \\ P=20

The perimeter of one face of the cube is 20m.
5 0
3 years ago
Round 713,486 to the nearest ten thousand
aleksley [76]
710,000 the thousands column is less than 5 therefore the answer is 710,000


5 0
3 years ago
Its due today please help!
Korolek [52]

Answer:

Cynthia and I will be there at the same time I don't have a car you have a car you have a car you have a car you have a car you have a car you have a car you have

5 0
3 years ago
Jskfhgk jdg kmhhhhhhhhhhhhhhhhhh
mafiozo [28]

sbxiizkaksbssnbsbs ssssssss

Step-by-step explanation:

<(* )

( )

\ \

4 0
3 years ago
Johanna, Elizabeth, and Dan are preparing a chemical solution for a research project. When
Bond [772]

Using the together rate, it is found that they would prepare the solution in 1.71 minutes working together.

<h3>What is the together rate?</h3>

It is the sum of each separate rate.

In this problem, the rates are given by:

  • Johanna's: 1/6.
  • Elizabeth's: 1/6.
  • Dan's: 1/4.

Hence the together rate is given by:

\frac{1}{x} = \frac{1}{6} + \frac{1}{6} + \frac{1}{4}

\frac{1}{x} = \frac{1}{3} + \frac{1}{4}

\frac{1}{x} = \frac{4 + 3}{12}

7x = 12

x = 12/7

x = 1.71.

They would prepare the solution in 1.71 minutes working together.

More can be learned about the together rate at brainly.com/question/25159431

#SPJ1

8 0
2 years ago
Other questions:
  • 5. The differential equation y 00 − xy = 0 is called Airy’s equation, and is used in physics to model the refraction of light. (
    8·1 answer
  • What is 620 divided by 11
    11·2 answers
  • Expand and simplify (x+2)(x+3)
    5·1 answer
  • What are the disadvantages of fire
    6·2 answers
  • A consumer testing service tested whether the average baking time of whole wheat bread in gas ovens was less than the average ba
    5·1 answer
  • Are the ratios 2.5:3.5 and 5.7 proportional ?
    10·1 answer
  • Evaluate sin^2 (pi/4) + cos^2(pi/4) + cos.
    15·1 answer
  • Please answer correctly if you can
    10·1 answer
  • A parabola opening up or down has vertex (0, -2) and passes through (8, -18). Write its
    8·1 answer
  • Allowance method entries
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!