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Kamila [148]
3 years ago
9

Evaluate f(x)=6x² – 12 when x=-3. A -30 B 42 C -48 D 312

Mathematics
2 answers:
pentagon [3]3 years ago
6 0

Answer:

B

Step-by-step explanation:

f(x) = 6x² - 12

f(-3) = 6(-3)² - 12

f(-3) = 6(9) - 12

f(-3) = 54 - 12

f(-3) = 42

Best of Luck!

Colt1911 [192]3 years ago
5 0

Answer:

-48

Step-by-step explanation:

its -66 but ok

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kifflom [539]
If the slope is undefined, then your line is a vertical line since vertical lines can have no slope (they don't have any lateral movement). Because it must pass through (- 8, 0), x must = - 8.

Your equation is x = - 8
8 0
3 years ago
at a movie theater adult tickets cost $8.00 and student tickets cost $5.00. If a big family bought 9 tickets and spent $48.00, h
Anastasy [175]

Answer:

8 student tickets and 1 adult ticket

Step-by-step explanation:

5 times 8 is 40

40 plus 8 is 48

which gives you $48.00

5 0
3 years ago
10+5-7=3y<br><br> -10x+5x+5=-15<br><br> 3x+2x-4x+10<br><br> pre algebra 8th grade math
jasenka [17]

Answer:

1) y=8/3=2 2/3   2) x=4    3) x+10

Step-by-step explanation:

1) 10+5-7=3y

Calculate the sum or difference.

8=3y

Swap the sides of the equation.

3y=8

Divide both sides by 3.

y=8/3=2 2/3

2) -10x+5x+5=-15

Collect like terms.

-5x+5=-15

Move the constant to the right-hand side and change the sign.

-5x=-15-5

Calculate the difference.

-5x=-20

Divide both sides by -5.

x=4

3) 3x+2x-4x+10

Collect like terms.

(3+2-4)x+10

Calculate the sum or difference.

1x+10

When the term has a coefficient of 1, it doesn't have to be written.

x+10

Hope this helps :)

5 0
2 years ago
I NEED THIS ASAP WORK IS ABOUT TO BE DUE IN A COUPLE OF HOURS​
Gemiola [76]

Answer:

D

Step-by-step explanation:

The interquartile range is the difference between the last dot on the box and the first dot on the box.

20 - 40:

150 - 110 = 40

50 - 70:

125 - 95 = 30

4 0
2 years ago
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DedPeter [7]

Answer:

50 degrees ( Vertically opposite)

Hope it helps

Step-by-step explanation:

5 0
3 years ago
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