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
givi [52]
3 years ago
10

I have to find f(3)

Mathematics
2 answers:
enot [183]3 years ago
8 0

Answer:

f(3)=21

Step-by-step explanation:

this is quite simple. To start off the equation is

f\left(x\right)=2x^2+x

All you do now is just plug 3 into x because you are trying to find f(3).

f\left(3\right)=2\left(3\right)^2+3

after that you simplify it to

f\left(3\right)=2\left(9\right)+3

Then you multiply.

f\left(3\right)=18+3

after that, the final step is just to add :)

f\left(3\right)=21

therefore, the final answer is:

f\left(3\right)=21

I hope this helps!

crimeas [40]3 years ago
4 0

Answer:

Step-by-step explanation:

plug 3 into x

2(3)^2+(3)

2(9)+3

18+3

21

f(3)=21

You might be interested in
Which number completes the square to form a perfect square trinomial?<br> x2 +12x +
Lady bird [3.3K]

Answer:

36

Step-by-step explanation:

(x + 6)(x+6)

F.O.I.L.

x^2 +6x + 6x + 36

X^2 + 12x + 36

4 0
3 years ago
Read 2 more answers
Brainliest goes to whoever answers correctly
velikii [3]
The answer is b

If you plug those values on a graph it will show a straight line.
7 0
3 years ago
The minute hand of a clock is 6 inches long and moves from 12 to 1 ​o'clock. How far does the tip of the minute hand​ move? Expr
Strike441 [17]

Answer: 12.57

Step-by-step explanation:

4 0
3 years ago
June bought ​
MA_775_DIABLO [31]

Answer:

$8006

Step-by-step explanation:

312*17.5=5460

134*19=2546

5460+2546= 8006

5 0
2 years ago
-9 - 5 this would help me a lot please
krok68 [10]

Answer:

-14

Step-by-step explanation:

Think of it like this-

subtracting a negative is like adding a positive, so all you have to do is add a negative sign to the sum after solving these sort of problems :>

Hope this helps!

7 0
2 years ago
Read 2 more answers
Other questions:
  • the sum of two consecutive integers is less than 83. find the pair of integers with the greatest sum.
    7·1 answer
  • How do you decide whether a number is a solution of an inequality
    10·1 answer
  • Please help me solve this question number 5​
    8·1 answer
  • Hector plans to randomly draw a card from a standard deck of cards, record the result, return the card to the deck, shuffle the
    5·2 answers
  • Solve the equation graphically by finding intersections.<br> |2x+1|=17<br> X=
    5·1 answer
  • A can of soup has a volume of 12 fluid ounces about how many milliliters is this ​
    13·1 answer
  • I NEED SOME HELP!!!
    11·2 answers
  • An observational study found that the amount of time a child spends learning a second language is associated with standardized t
    8·1 answer
  • Sorry, you think i would get it by now... Which's one not Proportional?
    7·1 answer
  • so i dont like brainly becuase they invinted this new ad thing once its runs out u cant use it for the whole day i thinks its no
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!