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1 year ago

Solve. (Enter your answer using interval notation.) |3x + 15| > 21

Mathematics

1 answer:

Katarina [22]1 year ago

4 0

Answer:

(-∞, -12), (2, ∞)

(-∞, -12) U (2, ∞)

Step-by-step explanation:

|3x + 15| > 21, |3x + 15| < -21

3x + 15 > 21, 3x + 15 < - 21

-15 -15 -15 -15

------------------ -------------------

3x > 6 3x < - 36

÷3 ÷3 ÷3 ÷3

------------ ------------------

x > 2 x < -12

(-∞, -12), (2, ∞)

(-∞, -12) U (2, ∞)

I hope this helps!

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Harriet bought 4 boxes that each have 30 bags of chips. She already had 80 bags of chips. If she then sells 200 bags of chips, h

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4 years ago

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vekshin1

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3 years ago

If f(x)= - 4x-4, g(x)= 4x² + 4x + 2, and h(x)= 3x2 – 3, find f(3).

Deffense [45]

Answer:

$f(3) = -16$

Step-by-step explanation:

Given

$f(x)= - 4x-4$

$g(x)= 4x^2 + 4x + 2$

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Required

$f(3)$

We have:

$f(x)= - 4x-4$

Substitute $x = 3$

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Hence:

$f(3) = -16$

6 0

3 years ago

HELP ASAP 10 POINTSSSS

dlinn [17]

Answer:
Y= -4 :)

Steps:
Apply rule
-y + 3 = 7
Subtract 3 from both sides
-y + 3 - 3 = 7 - 3
Simplify
-y = 4
Divide both sides by -1
-y/-1 = 4/-1
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3 years ago

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mel-nik [20]

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