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3 years ago

12

Solve x2 = 12x – 15 by completing the square. Which is the solution set of the equation?

2 answers:

VLD [36.1K]3 years ago

5 0

Correct answer is D.

jeyben [28]3 years ago

4 0

The answer is D. See picture for work:

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babymother [125]

B

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square root answer to get 72

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3 years ago

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Step-by-step explanation: Hope this helps.

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3 years ago

A line passes through the point. (4, -7) and has a slope of 5/2

blagie [28]

t p = through point

s = slope

$y - y(t \: p) = (s) \times ( \: x - x(t \: p) \: ) \\$

$y - ( - 7) = \frac{5}{2} \times (x - 4) \\$

$y + 7 = \frac{5}{2} \times (x - 4) \\$

$y + 7 = \frac{5}{2}x - \frac{5 \times 4}{2} \\$

$y +7 = \frac{5}{2}x - \frac{20}{2} \\$

Subtract both sides -7

$y = \frac{5}{2}x - 10 - 7 \\$

$y = \frac{5}{2}x - 17 \\$

And we're done....

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3 years ago