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
klio [65]
3 years ago
9

If f(x)=2x squared -x, find f (3)

Mathematics
1 answer:
malfutka [58]3 years ago
6 0

Substitute the value of x = 3 to the equation of the function:

f(x) = 2x² - x → f(3) = 2(3²) - 3 = 2(9) - 3 = 18 - 3 = 15


Answer: f(3) = 15

You might be interested in
What is the GCF of the expression (24 + 18)?
andrew-mc [135]
6. 24- factors:1&24,2&12,3&8, 4&6. 18  factors: 1&18, 2&9, 3&6. The highest number that can multiply into them is 6 so it is the GCF
6 0
3 years ago
A sphere-shaped water balloon can extend to a diameter of 3.5 inches before it explodes.
ollegr [7]
Volume of a spehere=(4/3)πr³

Data:
diameter=3.5 in
π=3.14

1)we calculate the radius:
r=diameter/2=3.5 in / 2=1.75 in

2) we calculate the volume of this sphere:
volume=(4/3)*3.14*(1.75 in)³=22.4379...in³≈22.44 in³.

Answer: 22.44 in³
5 0
3 years ago
Read 2 more answers
What is the meaning of mathematics ​
Nonamiya [84]

Answer:

mathematics is the study of numbers shapes and patterns

6 0
4 years ago
Find the reciprocal of 3/5
Kisachek [45]
The reciprocal of 3/5 is 5/3.

To get the reciprocal of a fraction, just turn it upside down.

A fraction has a numerator, top number, and a denominator, bottom number.
To get the reciprocal of a fraction, just swap over the numerator and denominator.

If whole numbers, to get the reciprocal of whole number, just divide the whole number by 1 to make it into a fraction, then get the reciprocal of that fraction.
8 0
3 years ago
Read 2 more answers
What does asap mean like rn and yassss
rjkz [21]
As Soon As Possible is what asap means or asap yams rip or asap ferg and rocky

6 0
4 years ago
Other questions:
  • Entre Juan, Pedro, María y Luis tienen 62 cartas. Pedro tiene un tercio de las cartas de Juan. María tiene 3 cartas menos que Ju
    7·1 answer
  • What is the solution set to the equation (2x – 6)(3x – 4) = 0?
    12·2 answers
  • What does 6x − 9 = 45 equal?
    11·2 answers
  • Please help!
    15·1 answer
  • Jen opens a bank account with a deposit of $100. Over six years, the balance in the account changes at an increasing rate until
    12·1 answer
  • What is the surface area of the box if it is scaled up by a factor of 10?
    5·1 answer
  • Can someone help me please I don’t understand
    6·1 answer
  • Choose the correct converse.
    14·1 answer
  • Help please, ill give 5 stars, and brainly ofc (if correct)
    10·2 answers
  • A fridge costs €336 after a price increase of 40%. what was the original price
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!