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
ivolga24 [154]
2 years ago
9

If f(x) = -2x2 + x-5, what is f(3)?

Mathematics
1 answer:
Ilia_Sergeevich [38]2 years ago
7 0

Answer:

f(3) = -20

Step-by-step explanation:

Replace each instance of x in 3^2x -9 =0 with 3:

f(x) = -2x2 + x-5 =  f(x) = -2x^2 + x-5 (" ^ " represents "exponentiation")

f(3) = -2(3)^2 + 3 - 5

f(3) = - 18 - 2 = -20

You might be interested in
PLSSS ANSWER 50 points
erma4kov [3.2K]

Answer:

18

Step-by-step explanation:

90 % 5 = 18 so A would measure 90º

8 0
3 years ago
Read 2 more answers
The number of camera phones shipped globally can be modeled by the function y = 1.28e 1.31x where x is the number of years since
OlgaM077 [116]

Answer: 895 phones

Step-by-step explanation:

Given that :

The function : y = 1.28e^1.31x ; is used to model the number of camera phones shipped since 1997

y = number of camera phones ; x = number of years since 1997

The number of camera phones shipped in the year 2002 can be obtained thus ;

x = 2002 - 1997 = 5 years

y = 1.28e^(1.31 * 5)

y = 1.28e^6.55

y = 1.28(699.24417)

y = 895.03254

y = 895 phones

3 0
3 years ago
Please help me. Brainliest to best answer!
Bingel [31]

Answer:

4y + 48 - 16x = 0        ~Solve for y~

4y = -48 + 16x

y = -12 + 4x

The slope is 4.

We'll use the point (1, 4) and m = 4.

Plug these into the equation: y - y1 = m(x - x1)

y - 4 = 4(x - 1)

y - 4 = 4x - 4

y = 4x 

6 0
2 years ago
(2y^3+5y^2-y+15) ÷ (y-4)
Sveta_85 [38]
ANSWER: 2y^2 + 13y +51 r(219/y-4)

picture explanation too:

8 0
2 years ago
What is 65.5 percent as a decimal
adell [148]

<u>Answer:</u>

65.5/100 = 0.665

<u />

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

*Hope this helps*

4 0
2 years ago
Other questions:
  • Juice boxes are sold in a local store for 65 cents each. The factory has $1400 in fixed costs plus 15 cents of additional expens
    10·1 answer
  • Calculate the flux of the vector field f⃗ (x,y,z)=cos(x2+y2)k⃗ through the disk x2+y2≤9 oriented upward in the plane z=4.
    8·1 answer
  • Greatest to least 0.386;0.3;0.683;0.836
    5·1 answer
  • Eli has 7 games on his phone . his sister has 6 more than him which ratio compares the number of games on Eli's phone to the num
    13·2 answers
  • Find the missing number: 32, ?, 104, 152, 208
    13·1 answer
  • teresa deposits $6000 into a bank account that pays 2% every year. how much interest will be paid in the first 4 years?
    7·1 answer
  • The formula d = rt gives the distance traveled in time t at rate r. A bicyclist rides at a
    13·1 answer
  • If you want to be a millionaire by age 70, and you start saving $50 a month at age 18 (with no previous savings), what expected
    11·1 answer
  • Please help.<br> Algebra.
    7·2 answers
  • Determine the area of a circle
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!