3 years ago

Factor completely: 2x2 + 6x − 80

2 answers:

5 0

<span>2(x − 5)(x + 8) is the answer</span>

Kruka [31]3 years ago

3 0

Correct answer is C.

$2x^2+6x-80
\\2(x^2+3x-40)
\\2(x^2+8x-5x-40)
\\2(x(x+8)-5(x+8))
\\2(x+8)(x-5)$

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serious [3.7K]

Answer:

$\large\boxed{V=\dfrac{1600\pi}{3}\ cm^3}$

Step-by-step explanation:

The formula of a volume of a cone:

$V=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have r = 10cm and H = 16cm. Substitute:

$V=\dfrac{1}{3}\pi(10^2)(16)=\dfrac{1}{3}\pi(100)(16)=\dfrac{1600\pi}{3}\ cm^3$

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3 years ago

Andru [333]

Answer: 10.7x + 5

Step-by-step explanation:

(3.5 + 7.2)x + (-5 + 10) = 10.7x + 5

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3 years ago

san4es73 [151]

If you turn all the numbers into decimals it becomes, -6.25, -6.35, -6.20, and, 6.1 so in order it would go 6.1, -6.20, -6.25, -6.35

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3 years ago

m_a_m_a [10]

Answer:o

Step-by-step explanation:

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3 years ago

mash [69]

Basically 1/2 equals 2 and times x equals 2x. X is a variable an unknown number so 2x +4 and that's how you get your answer

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3 years ago