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4 years ago

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

Mathematics

1 answer:

rusak2 [61]4 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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How to solve 1 2/3j=15

ivann1987 [24]

Answer:

j = 9

Step-by-step explanation:

The answer to the question above is solved below.

$1 \frac{2}{3}j = 15$

Convert the mixed numbers to improper fraction following the step: 1×3 = 3 +2 =5 / 3j = 5/3j

$\frac{5}{3}j = 15$

Eliminate the fraction of the equation left hand side by multiplying both sides by 3

$3 \times \frac{5}{3}j = 3 \times 15$

$5j = 45$

Divide both sides by 5

$\frac{5j}{5} = \frac{45}{5}$

$j = 9$

$thus \: if \: 1 \frac{2}{3}j = 15. \: j = 9$

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olganol [36]

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Step-by-step explanation: I explained what to do in the comments.

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3 years ago

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belka [17]

Answer:

Step-by-step explanat ion:

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3 years ago

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3 years ago

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max2010maxim [7]

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3 years ago

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

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