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sleet_krkn [62]
3 years ago
6

If 2x − 4(x + 1) = −12, evaluate x2 − 1.

Mathematics
1 answer:
Vlad [161]3 years ago
6 0
2x-4(x+1)=-13
1) we solve this equation:
2x-4(x+1)=-12
2x-4x-4=-12
-2x=-12+4
-2x=-8
x=-8/-2
x=4

2) we evalute x²-1
x²-1=4²-1=16-1=15

Answer: 15
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3 years ago
You have a wooden rod which is 24 1/2 inches long. Carlos needs a piece which is 8 3/4 inches long and Amanda needs a piece whic
ipn [44]

Answer:

8 3/4 inches

Step-by-step explanation:

Total length of the rod = 24 1/2 inches

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= 24 1/2 - (8 3/4 + 6 3/8)

= 49/2 - (35/4 + 51/8)

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6 0
3 years ago
1/3 + 1/4 + 1/6<br> PLEASE SHOW WORK, thank you
Dovator [93]

Answer:

3/4

Step-by-step explanation:

1/3 + 1/4 + 1/6

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1/3 = 4/12

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3 0
3 years ago
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Which of the following is a rational number?
vagabundo [1.1K]

Answer:

E

Step-by-step explanation:

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7 0
3 years ago
Can I get some help with 1) plz
erik [133]
Your answer is 12 because 8*4=24 and 3*4=12                                                                                                                                                                                                                 Your answer is 12
6 0
3 years ago
Read 2 more answers
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