Question

solve y = -0.2x^2 + 4.8x -10.8 using the quadratic formula

Answer 1

\[x = \frac{-(4.8) \pm \sqrt{4.8^2-4(-0.2)(-10.8)} }{2(-0.2)}\]

Answer 2

So would the answer come out to be 12√14.4?

Answer 3

you are close.

Answer 4

\[3(4- \sqrt{10}), 3(4+\sqrt{10})\]

Answer 5

how did you get that?

Answer 6

calc.

Answer 7

you have to solve the formula to get it.

Answer 8

ok let me see if I can get it. Did you use a GCF?

Answer 9

Or did you do something to the decimals?

Answer 10

we can convert that to decimals as well

Answer 11

Because I redid solving the equation but I get the same thing :/

Answer 12

can u show me your working?

Answer 13

\[-4.8 \pm \sqrt{23.04 - 8.64} \]

Answer 14

/-0.4 (This is the denominator
)