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
klasskru [66]
3 years ago
5

If f(x) = -2x^2 + x–5, what is f(3)?

Mathematics
1 answer:
yan [13]3 years ago
7 0

Answer:

-20

Step-by-step explanation:

Replace X by 3

f(3) = -2(3)^2+ (3)-5 = -20

You might be interested in
How to solve proportion using cross products,k8=14/4
luda_lava [24]
Multiply the variable k times 4 would give you 4k.
Then cross multiply 14x8 = 112

Therefore, you would have 4k = 112.
Divide 112 by 4 to get your answer!
6 0
3 years ago
A custodian plans to repaint some classroom bookcases. She has 5 1/4 gallons of paint.
just olya [345]

Answer:

21/4 :3/4=  21/4 *4/3= 7/1 *1/1 = 7

7 bookcases

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Evaluate 2(4-1)^2<br><br> A. 60<br> B. 30<br> C. 18<br> D. 36
iogann1982 [59]
Remember the rules of PEMDAS

1. First you want to evaluate the parentheses. (4-1) = 3

2. Square:
3^2 = 9

3. Multiply: 9*2 = 18

Your answer is C
4 0
3 years ago
Bailey sold pumpkin pies for two days. on Monday, she sold 13 pies and on Tuesday she sold 23 pies. If she used 3/4 cup of pumpk
MArishka [77]

Answer:

27

Step-by-step explanation:

13 + 23 = 36 x 3/4 = 27

8 0
3 years ago
Anyone know the answer to these?
Arturiano [62]

Step-by-step explanation:

Speakers =£ 31.5

Headphones =£ 4.8

Book =£ 3.85

Mobile phone =£ 36

mouse = £12.75

DVD =£ 10.2

Hope it will help you :)

8 0
3 years ago
Other questions:
  • Brainliest!!!<br> Please help ASAP !
    15·1 answer
  • What is 40x678 I can not find this out
    14·2 answers
  • What is the LCM of 16 and 24
    15·1 answer
  • The height of the shortest man in history was 68 cm. This is 204 less than the height of the tallest man. how tall was the talle
    13·1 answer
  • A cheetah ran 300 feet in 2.92 seconds. What was the cheetah’s average speed in miles per hour? Show your work.
    11·1 answer
  • Can someone please help me with this math question?
    10·2 answers
  • A country is dealing with a serious macroeconomic problem. Businesses
    7·1 answer
  • HELP, i’m struggling and i don’t understand this
    9·2 answers
  • Which ordered pair represents a point that is a solution of the equation y = −1/2x and therefore, lies on the graph of this func
    15·1 answer
  • This table shows the results of a survey that asked a group of people what time of day their favorite TV show aired. What time c
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!