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elena-14-01-66 [18.8K]
3 years ago
13

Factor 3x2 - 15x - 42.

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0
3 x^{2} - 15x - 42
(x-7)(x+2)
 x-7=0 x+2=0
 x=7,-2
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Given the lines a and b are parallel and that m 2= 68, find m 5.
skelet666 [1.2K]

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Hope this helps :)

6 0
4 years ago
Read 2 more answers
I will mark it as brainliest whoever has the clearest explanation
UkoKoshka [18]

Answer:

b = 320

Step-by-step explanation:

a + b = 880

1 - 4/7 = 3/7 (restant A)

1 - 1/4 = 3/4 (restant B)

(3/7) . a = (3/4) . b

a = (7/4) . b

a + b = 880

(7/4) . b + b = 880

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11 b = 880 . 4

b = 320

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Answer:

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Step-by-step explanation:

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3 years ago
Which is a way to show ΔDEF is congruent to ΔD’E’F’? A. A rotation 90° and a translation 1 unit up and 1 unit left B. A reflecti
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Answer:

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Step-by-step explanation:

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Elise has 3/4 of a dollar. She buys a stamp that cost $0.44. Change both numbers into a decimal,and tell how much money Elise ha
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