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Alex787 [66]
3 years ago
15

I’m confused someone explain please

Mathematics
1 answer:
Naya [18.7K]3 years ago
3 0

Answer:

3(x - 12)(x + 2)

Step-by-step explanation:

Given

3x² - 30x - 72 ← factor out 3 from each term

= 3(x² - 10x - 24) ← factor the quadratic

Consider the factors of the constant term (- 24) which sum to give the coefficient of the x- term (- 10)

The factors are - 12 and + 2 , since

- 12 × 2 = - 24 and - 12 + 2 = - 10 , thus

x² - 10x - 24 = (x - 12)(x + 2) and

3x² - 30x - 72 = 3(x - 12)(x + 2)

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Answer:

1. 4.66 gallons 2. 2.33 gallons 3. 1.55 gallons

Step-by-step explanation:

1. If her gallons cover is 250 square feet, the number of gallons of paint Lacie would need to cover 1,165.5 square feet of bedroom walls is

1,165.5/250 = 4.66 gallons

2. If her gallons cover is 500 square feet, the number of gallons of paint Lacie would need to cover 1,165.5 square feet of bedroom walls is

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4 0
3 years ago
Consider this three digit sequence 943. Is the first digit the largest or the second digit the smallest, and, is the third digit
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Evaluate each expression.<br> 1) 2 x 6+1+1<br> A) 13<br> B) 10<br> C) 14<br> D) 19
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5 0
3 years ago
Read 2 more answers
I need help please thanks
kompoz [17]

Answer:

Vertical angles = 81 degrees

Angle (4y-1) = 99 degrees

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Step-by-step explanation:

2x + 5 = 3x - 33 (vertical angles)

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3 0
3 years ago
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