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slavikrds [6]
2 years ago
11

Solve for a. 4/a+4 =-1/a+9

Mathematics
1 answer:
Bad White [126]2 years ago
5 0

Answer:

a = -8

Step-by-step explanation:

you can solve this proportion by cross-multiplying:

4(a + 9) = -1(a + 4)

now distribute to eliminate parentheses

4a + 36 = -1a - 4

5a + 36 = -4

5a = -40

a = -8

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The vertex is (d, e)

for quadratic function: f(x) = ax² + bx + c  we have:

d = -b/a    and    d = (x₁ + x₂)/2  

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3 years ago
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eimsori [14]

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(3 - 2i)(3 + 2i)

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