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
abruzzese [7]
3 years ago
6

If f(x) = 2x2 + 1, what is f(x) when x = 3? a.1 b.7 c.13 d.19

Mathematics
2 answers:
mestny [16]3 years ago
7 0

Answer:

the answer is D

Step-by-step explanation:

The value of f(x) =  when x=3 is 19

prohojiy [21]3 years ago
4 0

<u>Answer:</u>

The value of f(x) = 2x^2 + 1 when x=3 is 19, hence the correct option is ‘d’.

<u>Solution:</u>

A two degree polynomial equation is given in the question.

The equation is:

F(x)=2 x^{2}+1

We need <em>to find the value of f(x) when the value of x is 3. </em>

To solve a question like this we have to substitute the given value of x in the given equation and then simplify it.

Now let's substitute the value of x in the given equation.

F(x)=2(3)^{2}+1

First we square the number 3 and then multiply it with 2 and then add 1.

This is done because of the BODMAS rule, in which multiplication is given higher preference as compared to addition.

On solving the equation we get,

F(x)=2×9+1

F(x)=18+1

F(x)=19.

Therefore the value of f(x) when x=3 is 19.

Hence the correct option is ‘d’.

You might be interested in
Pls need help fast ._.
yuradex [85]

Answer:

65.75% change

Step-by-step explanation:

Equation for percent change

(|x2-x1| / x1) * 100%

48 million / 73 million * 100% = 65.75% decrease

4 0
3 years ago
Read 2 more answers
I need help on my math i wasn't there that day my class did it
wlad13 [49]

Answer:

(a-4)x-b+9

Step-by-step explanation:

hope this helps

7 0
3 years ago
Read 2 more answers
Solve forx.<br> (2x - 1) (5x+3) = 0
Elena L [17]
See photo for answer

Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.
5 0
2 years ago
Read 2 more answers
Someone help
attashe74 [19]

Answer:

.

Step-by-step explanation:

6 0
3 years ago
Question
CaHeK987 [17]

Answer:

0.40 x 50

Step-by-step explanation:

40% is of 1 so it can be rewritten as 0.40

3 0
2 years ago
Read 2 more answers
Other questions:
  • What is the answer to the question 25% of what is 21?
    9·2 answers
  • a basketball team needs to score more than 795 total points this season to set a new record. the team has already scored 165 poi
    5·2 answers
  • Can someone solve this
    12·1 answer
  • Rob deposits $1,000 in a savings account at New York State Bank that pays 1.4% interest, compounded monthly.
    5·1 answer
  • I need to know the answer
    12·2 answers
  • If there are 400 cubic centimeters of a chemical in 1 liter of solution, how many cubic centimeters of water must be added to di
    11·1 answer
  • Please help me !!!!!!
    6·2 answers
  • PLEASE HELP. WORTH 50 PINTS IF CORRECT. A gate casts a shadow that is 5 feet long. A nearby cactus is 9 feet tall and casts a sh
    12·2 answers
  • Picture attached below<br><br> A. 1/3<br> B. 5/13<br> C. 4/5<br> D. 12/13
    10·1 answer
  • What is the slope of a line perpendicular to the line that passes through (4, -3) and
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!