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
Keith_Richards [23]
3 years ago
13

If f(x) = 2x^2 - x, find f(-3).

Mathematics
2 answers:
Tju [1.3M]3 years ago
7 0
F(x)=2x^2-x, x=-3

f(-3)=2(-3)^2-(-3)

f(-3)=2(9)+3

f(-3)=18+3

f(-3)=21
ioda3 years ago
4 0
F(-3)  = 2(-3)^2 - (-3) =  2(9)+3 = 18 + 3 = 21
You might be interested in
Umberto buys a game for $7.89 and some batteries for $5.49. He pays with a $20 bill. Which is the best estimate of change he sho
Anika [276]

The change is the remaining money that is needed to take from the seller so a change of Umberto will be $6.62.

<h3>What is subtraction?</h3>

To subtract in mathematics is to take something away from a group or a number of objects.

The group's total number of items decreases or becomes lower when we subtract from it.

Given that,

Umberto buys a game for $7.89 and some batteries for $5.49.

Total money of buying = 7.89 + 5.49 = $13.38

Now he gives a $20 bill.

Remaining (change) = 20 - 13.38

⇒ $6.62

Hence "The change of Umberto will be $6.62".

For more about subtraction,

brainly.com/question/1927340

#SPJ1

6 0
1 year ago
A rectangular school banner has a length of 44 inches, a perimeter of 156 inches, and an area of 1,496 square inches. the cheerl
STatiana [176]

A rectangular school banner has a length of 44 inches, a perimeter of 156 inches, and an area of 1,496 square inches. the cheerleaders make signs similar to the banner. the length of a sign is 11 inches. First solve the width of the rectangle:

1496 sq in/ 44 = 34 in

So the sign has also a width of 34 in and a length of 11 so the area is 34*11 =374 sq in

<span>The perimeter is (34*2) +(11*2) =90 in</span>

3 0
3 years ago
PLEASEEEE HELP MEEE
kobusy [5.1K]
The 1st , 3rd , 5th and 6th apply
6 0
2 years ago
What is the equation of the line that passes through the points four over 5 , and one over five and then one half , and three ov
Scorpion4ik [409]
Your answer is y = -(13/3)x + 11/3. I have put the brackets to show that the entire fraction is negative, they do not do anything else.
First we need to find the slope of the line using the equation (y2 - y1)/(x2 - x1), so we get (3/2 - 1/5)/(1/2 - 4/5). To make this easier, I did each subtraction separately:
3/2 - 1/5 = 15/10 - 2/10 = 13/10
1/2 - 4/5 = 5/10 - 8/10 = -(3/10)
And then we need to divide 13/10 by -(3/10), so:
13/10 ÷ -(3/10) = 13/10 × -(10/3) = -(130/30) = -(13/3), which is our slope.
Then, we can write the equation y = -(13/3)x + c, and substitute in coordinates:
3/2 = (-13/3 × 1/2) + c
3/2 = -(13/6) + c
c = 11/3
So the final equation is y = -(13/3)x + 11/3.
I hope this helps!
3 0
3 years ago
<img src="https://tex.z-dn.net/?f=2%20%20%5Ctimes%201%20%5C%5C%206%5C%20%20%5Ctimes%203" id="TexFormula1" title="2 \times 1 \\
boyakko [2]

Answer:

2 *1 =2

6*3=18

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Darcia made a snack mix using the following recipe.
    12·1 answer
  • What is the circumference of the circle? (d=23 in)
    13·1 answer
  • Select the equation that contains the point (4, -8), and in which the graph of the line has a positive slope.
    15·1 answer
  • Sociologists say the percentage of the classic music lovers is about 5%. From the survey, we know that only 83 out of 2000 peopl
    9·1 answer
  • A-bcosc/c-bcosa=sinc/sina​
    5·1 answer
  • -4x+6= 6x -2<br><br> one solution<br> infinity solution<br> no solution
    10·2 answers
  • What was the average speed of the Luna 1?
    12·1 answer
  • If Steph Curry can shoot 72 free throws in 12 minutes, how many free throws
    7·2 answers
  • Evaluate the following real numbers:
    10·1 answer
  • A 20 cm long thin wire is used to form a square. What is the area of the square?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!