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
algol13
3 years ago
12

What is the value of the expression 2x^3-x^2+3x+5 for x = -2

Mathematics
1 answer:
Fittoniya [83]3 years ago
8 0

Answer:

if you swap ever x for a -2 the answer is -21

Step-by-step explanation:

You might be interested in
The standard form of y = -x + 2 is x + y = 2.<br> Group of answer choices<br><br> True<br><br> False
Ipatiy [6.2K]
The answer to this is true
6 0
3 years ago
If x/y + y/x = -1 , find the value of x^3 - y^3
marin [14]

Answer:

  0

Step-by-step explanation:

Multiplying the first equation by xy, we have ...

  x^2 +y^2 = -xy

Factoring the expression of interest, we have ...

  x^3 -y^3 = (x -y)(x^2 +xy +y^2)

Substituting for xy using the first expression we found, this is ...

  x^3 -y^3 = (x -y)(x^2 -(x^2 +y^2) +y^2) = (x -y)(0) = 0

The value of x^3 -y^3 is 0.

7 0
3 years ago
suzie spent 3 1/2 hours at the beach. she spent 45 minutes playing in the sand and the rest of the time playing in the water. ho
Anika [276]

Answer:

2 hours and 45 min

Explanation:

3 hours+30 minutes

subtract 30

3 hours

subtract 15

2 hours and 45 min

6 0
2 years ago
I need help completing this answer are you available
melomori [17]

Answer:

Step-by-step explanation:

7 0
2 years ago
Rafael received 5/6 of 180 volts how many votes did he receive
Kruka [31]

Answer:  The answer would be 6

Here is an example:

If you divided 64 by 5/8, then you would get a number larger than 64.

To get the answer, multiply 64 * 5/8. So find what 64*5 is then divide that number by 8. 64*5=320. 8 goes into 32 4 times, so it goes into 320 40 times. So your answer is 40.

Hope this helps,

Please give me Brainliest

6 0
3 years ago
Other questions:
  • Draw 3 distinct lines that have the same y intercept
    9·1 answer
  • An angle measuring 32 degrees has a complement that measures (2x - 16)degrees. What is the value of x? (and the steps)
    14·1 answer
  • Between 11 P.M. and 8:36 A.M.​, the water level in a swimming pool decreased by 8 25 in. Assuming that the water level decreased
    14·1 answer
  • What is the area of a circle with a radius of 4 ft?<br> ft² <br> (Use 3.14 for Pi.)
    14·1 answer
  • 3 of 9
    15·1 answer
  • Samantha is creating concrete spheres for a weight-lifting competition. One of the spheres needs to have a weight of 350 pounds.
    14·1 answer
  • Pls help middle school math
    6·1 answer
  • Halp halp halp meee <br> I give brain list to best answer pwease halp
    10·2 answers
  • High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The engineers
    15·1 answer
  • explain how to use estimation to help find the product of two decimals. give an example with both estimated and actual answer
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!