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
Varvara68 [4.7K]
2 years ago
11

Evaluate f(-2) = -3x² - 2x

Mathematics
1 answer:
Delvig [45]2 years ago
8 0

Answer:

-2F=7x

Step-by-step explanation:

F*-2= -2F       3x*3x=9x

-2F=9x-2x

<u>-2F=7x</u>

You might be interested in
Solve<br> h-w<br> Solve m = for the<br> 8<br> variable h.<br> I
Ilya [14]

Answer:

1) m = h - w/8

Subtract h from both sides.

m - h = -w/8

Subtract m from both sides.

-h = -m - w/8

Divide all terms by -1.

h = m + w/8.

2) m = h - w/8

Get rid of the denominator 8 by multiplying 8/1 to all terms.

8m = 8h - w

Add w on both sides and subtract 8m from both sides.

w = 8h - 8m

3) w = x + y/z

Get rid of the denominator z by multiplying it to all terms.

wz = xz + y

Subtract xz from both sides of the equation.

wz - xz = y OR y = wz - xz

4) w = x + y/z

Subtract x from both sides.

w - x = y/z

Get rid of the denominator by multiplying it to all terms.

wz - xz = y

Now factor the expression wz - xz.

z(w - x) = y

Divide both sides by w - x.

z = y / w - x

This is read as z equals to y divided by w minus x.

5) The area of a triangle is A = 1/2bh

First, get rid of the denominator by multiplying both sides by 2.

2A = bh

To find b, divide both sides by h.

2A/h = b

6) P = kt/v

Multiply both sides by v.

Pv = kt

Divide both sides by t.

Pv/t = k OR k = Pv/t.

Step-by-step explanation:

8 0
3 years ago
V=4r How would you solve for 'r'
kaheart [24]
r=\dfrac{V}{4}
5 0
3 years ago
Read 2 more answers
Hi does anyone know the answer?
Artemon [7]

Answer:

The correct equation is actually: y=10x+10.

Jaiden calculated the slope of the line incorrectly, as the y-axis increases by 10, not 2. The correct slope of the line is 20/2, which is equal to 10.

Hope this helps!

3 0
3 years ago
Samuel has run for 45 minutes. If he has completed 60% of his run, how many minutes will Samuel run in all?
Irina18 [472]

Answer:

27

Step-by-step explanation:

45÷10= 4.5

4.5×6= 27 minutes

6 0
3 years ago
The book fair sold 60% of the books
natka813 [3]

Answer:

120 Books

Step-by-step explanation:

60% of 120 is 72

6 0
3 years ago
Other questions:
  • 7: Maribel blinks her eyes 105 times in 5 minutes. If b represents the number of times Maribel blinks in m minutes, what is a li
    12·1 answer
  • HELP PLEASE!!! WILL GIVE BRAINLIEST
    8·1 answer
  • If (x)=3x-1 and s(x)=2x+1, which expression is equivalent to r over s (6) ?
    5·1 answer
  • How does the size of an image compare to the original figure when the original figure undergoes a
    10·1 answer
  • Bradon has 32 stamps.He wants to display the stamps in rows,with the same number of stamps in each row.
    14·2 answers
  • What is the perimeter of a square with an area of 324 cm2?
    12·1 answer
  • 4*2 + 3[37 – (2x5)]=<br> Exponents are this *
    8·1 answer
  • The sum of 8 and x is less than 23?
    15·1 answer
  • Round 62.43487 to the nearest one.
    13·1 answer
  • Select the expressions that are equivalent to 10 + 2x + 5y + 3x.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!