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
Elden [556K]
3 years ago
8

If f(x) = 2х2 + 1, what is f(x) when x = 3? o 1 ООО

Mathematics
1 answer:
Brrunno [24]3 years ago
8 0

<em>f(x) equals 19 when  x = 3</em>

<h2>Explanation:</h2>

Here we have the following function:

f(x)=2x^2+1

And want to know the output of the function when the input is x=3. So let's substitute this x-values into the function:

f(3)=2(3)^2+1 \\ \\ f(3)=2(9)+1 \\ \\ \boxed{f(3)=19}

Finally:

<em>f(x) equals 19 when  x = 3</em>

<em></em>

<h2>Learn more:</h2>

Zeroes of a parabola: brainly.com/question/1469367

#LearnWithBrainly

You might be interested in
What is the equation of the line given slope of 2 and<br> ordered pair (3,5)
castortr0y [4]

Step-by-step explanation:

y-5 = 2(x-3)

y-5 = 2x -6

y = 2x -1

6 0
3 years ago
The scale of a map says that 2 cm represents 8 km. What is the actual number of kilometers that is represented by 3 centimeters
wolverine [178]
12kilometers
If 2cm=8km, 1cm=4km
Multiply both by three and you get that 3cm=12km
3 0
3 years ago
Read 2 more answers
Select "Rational" or "Irrational" to classify each number.
dalvyx [7]

Answer:

Step-by-step explanation:

0.144 rational

√(0.144)  irrational

√(0.0144)=0.12 rational

8 0
3 years ago
In a certain card game you draw one card off a standard deck of 52 cards. If you draw a spade you get paid $12, if you draw a re
Mariulka [41]

Step-by-step explanation:

In a standard deck of 52 cards, there are 2 red aces, 2 red Queens, and 13 spades.  That leaves 35 cards for everything else.

For the game to be fair, the cost must equal the expected value.  The expected value is the sum of each outcome times its probability.

C = (12) (13/52) + (20) (2/52) + (38) (2/52) + (0) (35/52)

C = 68/13

C ≈ 5.2308

4 0
3 years ago
A pan has an original price of $32 but is marked down by 15 percent. Which equation shows the new price of the price
sergejj [24]
We suggest, that the number 32 is 100% - because it is the output value of the task. 
<span>We suggest, that x is the value that we are looking for. </span>
<span>3. If 32 is 100%, so we can jot it down as 32=100%. </span>
<span>4. We know for sure, that x is 15% of the output value, so we can jot it down as x=15%. </span>
5. Now, these are the equations are we have.
1) 32=100%
2) x=15%
where the left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
32/x=100%/15%
6. Now we just have to work out the equation, and we'll get the answer that we want.

7. Answer for what is 15% of 32

32/x=100/15
<span>(32/x)*x=(100/15)*x       - </span>multiply both sides of the equation by x
<span>32=6.66666666667*x       - </span>divide both sides of the equation by (6.66666666667) to get x
<span>32/6.66666666667=x </span>
<span>4.8=x </span>
x=4.8

<span>15% of 32=4.8
So, the answer is $4.8
Hope this helped</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • The radius of a circle is 1 centimeter. What is the area of a sector bounded by a 90 arc
    5·2 answers
  • Please help!!! I’m failing with a 38 in math rn! I’ll make you brainlest. Thank you
    14·1 answer
  • WHOEVER ANSWERS THE GEOMETRY QUESTIONS THAT I'VE ALREADY POSTED CORRECTLY WILL GET A GOOD AMOUNT OF POINTS AND BRAINLIEST!!!! SO
    11·1 answer
  • Leroy is a house painter who has just been paid
    7·2 answers
  • Find the sum of the arithmetic series if a1=−52,a28=−79,and n=28
    11·1 answer
  • Can someone please answer the most recent question here's some points
    11·1 answer
  • What is the Domain of the relation below:
    14·1 answer
  • Which subject is used most heavily in game design?
    7·2 answers
  • At a hardware store, a tool set normally costs $80. During a sale this week, the tool set costs $12 less than usual. What percen
    8·2 answers
  • Find the value of X
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!