3 years ago

What are the zeros of f(x) = x2 + 2x - 80?

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

8 0

Answer:

The zeros are 8 and -10, all u have to do is substitute x for those values, factor it, or graph it.

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Answer:

2x+6<14

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3 years ago

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What is the slope of the line that passes through the point (-9,8) and (-3-1)?

natulia [17]

Answer:

Step-by-step explanation:

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$Slope = \dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\dfrac{-1-8}{-3-[-9]}\\\\=\dfrac{-9}{-3+9}\\\\=\dfrac{-9}{6}\\\\=\dfrac{-3}{2}$

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2 years ago

What is the area of triangle DEF

kolezko [41]

Answer:

76.5 cm²

Step-by-step explanation:

Given the triangles are similar , then

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let x be the area of Δ DEF and using proportion

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