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aalyn [17]
3 years ago
12

Quadratic functionI need help writing quadratic functions the zeroes are 3 and -10​

Mathematics
1 answer:
rusak2 [61]3 years ago
3 0

Answer:

у = x² + 7x - 30

Step-by-step explanation:

x₁ = 3 and x₂ = -10

Use the formula    (x - x₁)(x - x₂) = 0

(x - 3)(x - (-10)) = 0

(x - 3)(x + 10) = 0

x² + 10x - 3x - 30 = 0

x² + 7x - 30 = 0

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Answer:

a.P<x<9.85 orx>10.15)=0.3174, Total defects=317.4

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a.The standard score,z, is esentially x reduced by process mean then divided my process standard deviation.

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b. \mu=10,\sigma=0.05

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z=\frac{x-\mu}{\sigma}=\frac{9.85-10}{0.05}\approx-3.0\\z=\frac{x-\mu}{\sigma}=\frac{10.15-10}{0.05}\approx+3.0\\\\=P(x10.15)=P(Z+3.0)\\=2P(Z

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