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
lisov135 [29]
3 years ago
9

Given the function: f(x) = 2x2 - 3x + 8, find f(-2).

Mathematics
1 answer:
Vaselesa [24]3 years ago
5 0

Answer: 22

<u>Step-by-step explanation:</u>

f(x) = 2x² - 3x + 8

f(-2) = 2(-2)² - 3(-2) + 8

       = 2(4) + 6 + 8

       = 8 + 6 + 8

       = 22

You might be interested in
True or false? f (x) = 2 · (1/5)^x represents an exponential function growth.
nekit [7.7K]

Hi there!

\large\boxed{\text{False.}}

f(x) = 2(1/5)ˣ

Recall the form of an exponential function:

f(x) = a(b)ˣ where:

a = initial value

b = rate of decay/growth

If b > 1, the function is undergoing exponential growth. If b < 1, then the function is undergoing exponential decay.

1/5 < 1, so the function is undergoing exponential decay, not growth.

7 0
3 years ago
Which factoring method would be best to factor x^2 - 9?
Vinil7 [7]

Answer:

  D.  difference of squares

Step-by-step explanation:

Both of the terms x^2 and 9 are squares, so their difference is the difference of squares. The factorization of that is a "special form" that can be usefully memorized.

  a^2 -b^2 = (a -b)(a +b)

  x^2 -9 = (x -3)(x +3)

8 0
2 years ago
How do i find the absolute value for l6ml=42
DIA [1.3K]

Answer:

m = 7

m = -7

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
It takes 7 hours for 12 men to paint a room.
mina [271]

Answer:

28(brainlestplzzzzzzzzzzzzzzz)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Sue invests $600 in an account at 4.5% simple interest paid annually over the term of 10 years. What is the final value?
BaLLatris [955]

Answer:

$870

Step-by-step explanation:

To figure out how much the final value here is, use the formula A = P(1 + rt). (A = total accured amount, P = principal, r = rate (%), t = time (years))

A = 600 * (1 + (10 * 9/200)) (multiply 10 by 9 and put that over 200)

A = 600 * (1 + (90/200)) (90/200 simplifies to 9/20)

A = 600 * (1 + (9/20)) (add 1 (20/20) to 9/20 to get 29/20)

A = 600 * 29/20 (Multiply 600 by 29 and put that over 20)

A = 17400/20 (Divide 17400 by 20 to get 870)

A = 870

$870 is the final value.

6 0
2 years ago
Other questions:
  • 55.8 is 62% of what number?
    14·1 answer
  • Do any one know the answer
    7·1 answer
  • Solve. 3x + 3 &lt; 93- 6
    15·1 answer
  • What is the meaning of y from y=kx?
    15·1 answer
  • What is the length of the unknown leg in the right triangle 9 and square root of 113
    7·1 answer
  • kali has a 6 centimeter ladder and puts the base of the ladder 2 meters away from the tree how high into the tree will the lader
    12·1 answer
  • What is 1/8 - 7/8 ? ( its a fraction)
    10·1 answer
  • Ellis built a rectangular vegetable garden there is 9' long and has an area of 72 ft²what is the perimeter of the vegetable gard
    15·1 answer
  • Last Friday David rented 4 movies from the video store. This Friday he rented 2 movies. Let x represent the cost of renting each
    9·1 answer
  • Plz help will be greatly apreciated
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!