Question

9th Grade Quadratic Equations.

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Answer 1

I think the equation would be x(x+6)=56

Answer 2

Which would turn into x^2 + 6x = 56

Answer 3

Subtracting 56 from both sides you get x^2 + 6x - 56

Answer 4

Formula for the Area of a Triangle

\[A = b \times h \times \frac{ 1 }{ 2 }\]

Where b = base
h = height


Let x = base
Therefore h = x + 6
They give us A = 56

So we input those into the formula and we get\[56 = x(x + 6) \times \frac{ 1 }{ 2 }\]

Answer 5

Oh!

Answer 6

You forgot the 1/2

Answer 7

I forgot 1/2

Answer 8

Okay so then it'd be \[56 = 1/2x^2 + 3x\]

Answer 9

mhm

Answer 10

So after inputting this into the quadratic formula (too hard to put on here XD) I'd get 8 and -14. 8 makes sense because you can't have a negative length.

Answer 11

mhm

Answer 12

Thank you kind sir.

Answer 13

No problem