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boyakko [2]
3 years ago
10

Please help me on #37. I know for A you would use the quadratic equation but I got the wrong answer.

Mathematics
1 answer:
ozzi3 years ago
6 0
Δ = (8i)^2 - 4*(-25) => Δ = -36 +100 => Δ = 64 => x1 =(-8i + 8)/2 => x1 = -4i +4;
x2 = (-8i - 8)/2 => x2 = -4i-4; in this case, your solutions are complex conjugates.
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1 part to his son means that his son has: (1 × 11500) = 115000.

He gave the last 3 parts and evenly it among 5 charities. This means:

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