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
Stells [14]
3 years ago
15

F(x) = -4x2 + 4x – 4 Find f(3)

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
5 0

F(3) occurs when x =3. So lets plug 3 into our equation.

f(3) = -4(3)^2 + 4(3)-4\\f(3) = -4(9) + 12- 4\\f(3) = -36 + 12- 4\\f(3)= -28

F(3) = -28

I hope this helps! :)

You might be interested in
The diameter of a circle is 222 units.<br> What is the radius of the circle?<br> units
cricket20 [7]

Answer:

111

Step-by-step explanation:

divide by 2 to find the radius

5 0
2 years ago
Which three lengths could be the lengths of the sides of a triangle?
Montano1993 [528]
C. 7 cm by 7 cm by 43 cm
5 0
3 years ago
The length of a rectangle is 2 ft longer than its width.
tino4ka555 [31]

Hi! I'm happy to help!

To solve this, we first need to look at the perimeter equation:

P=2L+2W

We don't know our length, so we can represent it with x. Since our width is 2 feet shorter than x, we can represent it with x-2. Now, we plug these values into our equation:

56=2x+(2(x-2))

Let's simplify what the width is by multiplying:

56=2x+2x-4

Now, let's combine our 2xs

56=4x-4

Now, we just need to solve for x in order to find our length and width.

First, we need to isolate x on one side of the equation. We can do this by adding 4 to both sides:

56=4x-4

+4      +4

60=4x

Now, all we have to do is divide both sides by 4 and x will be fully isolated:

60=4x

÷4  ÷4

15=x

Now that we know x, let's plug this into our previous equations:

L=x=15

<u>L=15</u>

W=x-2=15-2=13

<u>W=13</u>

To verify our answers, we can plug this into our perimeter equation:

56=2(15)+2(13)

56=30+36

56=56

After double checking our answers, we know that our length is 15 and our width is 13.

I hope this was helpful, keep learning! :D

5 0
3 years ago
Hey y’all , please give me the correct answer.
eduard

Answer:

-s-6>-7

Step-by-step explanation:

Just ask!

Hope this helps. :)

6 0
2 years ago
Read 2 more answers
Using the slope formula, find the slope of the line through the given points.<br> (1,6) and (3,4)
svlad2 [7]
To find slope you do y2-y1 over x2-x1. So 4-6 is -2. And 3-1 is 2. So -2/2 is -1. The slope is -1.
7 0
3 years ago
Other questions:
  • Urgent Help!!<br> Please Help
    6·1 answer
  • Need help filling in the blanks
    7·1 answer
  • A shipment of sugar fills 2 and 4/5 containers. If each container holds 3and2/7 tons of sugar, what is the amount of sugar in th
    6·1 answer
  • The winner of the cross-country meet ran 6 miles in 2 hour. What is the average speed per minute?
    9·2 answers
  • I need help please!!
    14·1 answer
  • PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*.. <br> IM GIVING 40 POINTS !! DONT SKIP :((.
    9·2 answers
  • HURRY NEED HELP ASAP
    9·2 answers
  • Chose the equation that has solutions (5,7) and (8,13)
    14·1 answer
  • 18 inches equals how many yards
    15·1 answer
  • Which equation describes the asymptote of the exponential function represented by this graph?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!