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
atroni [7]
3 years ago
13

Which is f(5) for the function –2x2 + 2x – 3?

Mathematics
2 answers:
il63 [147K]3 years ago
7 0
Given:
f(5) for the function -2x² + 2x - 3

usually the value enclosed in a parenthesis in a function is the value of x.

f(x) = -2x² + 2x - 3

So if x = 5 ; then, we simply substitute x by its value

f(5) = -2(5²) + 2(5) - 3
f(5) = -2(25) + 10 - 3
f(5) = -50 + 10 - 3
f(5) = 10 - 50 - 3
f(5) = 10 - 53
f(5) = -43
Damm [24]3 years ago
4 0

Answer:

-43

Step-by-step explanation:

You might be interested in
Simplify the radical expression (-9√28a^2*1/3√63a)<br><br> show work
Dovator [93]
A ≥ 0

-\not9^3\sqrt{28a^2}*\frac{1}{\not3^1}\sqrt{63a}=\\\\ =-3a\sqrt{4*7}*\sqrt{9*7a}=\\\\=-3a*2\sqrt{7}*3\sqrt{7a}\\\\ =-18a\sqrt7*\sqrt 7*\sqrt a=\\\\=-18a*(\sqrt7)^2*\sqrt a =\\\\ =-18a*7*\sqrt a=\\\\ =-126a\sqrt a
8 0
3 years ago
11-Across plus 28-Down
Art [367]

Answer:

(11,-28)

Step-by-step explanation:

8 0
3 years ago
Solve the system of equations algebraically.<br> 3X - 3y = 6<br> 6x - 7y = 5
mojhsa [17]

Answer: 9,7

Step-by-step explanation:

i hope this is the answer you were hoping for and try not to strees to much over school you got this!<3

6 0
2 years ago
Read 2 more answers
Henry can write 5 1/4 pages of his novel in 3 hours how may pages does he write per hour
balandron [24]

Answer:

1 3/4

Step-by-step explanation:

5 1/4 / 3 is equal to 1 and 3/4

5 0
2 years ago
Read 2 more answers
Find the value of x needed to make the equation True. 3/4(20x-8)-3=54
olasank [31]

Answer:

The answer is option B, x = 4.2

6 0
2 years ago
Other questions:
  • Quick! Anyone know this geometry question?
    9·2 answers
  • Mr. Hall deposited money into an account in which interest is compounded quarterly at a rate of 2.6%. How much did he deposit if
    10·1 answer
  • A 12 foot board is split into 5 equal pieces. Which expression shows the length of each piece
    15·1 answer
  • Solve for the value of z: 90/15=6/z help asap !!
    5·2 answers
  • Find all solutions by transforming the system to reduced echelon form and back substituting. (If there are an infinite number of
    5·1 answer
  • What is 248% as a mixed number?
    5·1 answer
  • 20 POINTS
    9·1 answer
  • The surface area of one cube is twice the surface area of a second cube.
    11·1 answer
  • 18:12:24 in lowest terms
    11·1 answer
  • Solve for a. a+45=1 1/2
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!