3 years ago

How do you factor x^2+7x+12=0

Mathematics

1 answer:

earnstyle [38]3 years ago

6 0

Break 7x into 4x+3x.
you get (x+3)(x+4)

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Evaluate 4a + 7b + 3a − 2b for a = 5 and b = −3.

blsea [12.9K]

Answer:

Step-by-step explanation:

$4a+7b+3a-2b\qquad\text{combine like terms}\\\\=(4a+3a)+(7b-2b)\\\\=7a+5b\qquad\text{put a = 5 and b = -3 to the expression}\\\\7(5)+5(-3)=35-15=20$

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3 years ago

What is the area of the triangle shown below?

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Answer:

Step-by-step explanation:

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3 years ago

Rufus collected 18 pounds of

RoseWind [281]

Answer:

Step-by-step explanation:

collected can=18pound

total can to collect=42

collected can per week=2

now,

42-18 =24

so, remaining cans to collect is 24pound

and,

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3 years ago

Andrew is putting reflective tape around the edge of a stop sign. The sign is a regular octagon, and each side is 11 inches long

Shkiper50 [21]

Answer:

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Step-by-step explanation:

We are finding the perimeter of the stop sign, therefor we have to either multiply or add the value of 11. Since this sign is an octagon we will have to multiply by eight or add 11 eight times. This will give you an answer of 88 inches.

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3 years ago

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C^2cos^2 B+ b^2cos^2 C + bc cos (B - C) = 1/2(a^2+b^2+ c^2)

melisa1 [442]

Answer:

me vale

Step-by-step explanation:

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2 years ago