Question

Equation using the quadratic fromula for 0.05x^2 + 1.1x = 250

Answer 1

x=60.56, x=-82.56

Explanation:

Solve using quadratic formula

Formula is

`x=(-b+-√(b^2-4ac))/(2a)`

0.05x^2 + 1.1x = 250

Subtract 250 on both sides

0.05x^2 + 1.1x - 250=0

a= 0.05, b=1.1 , c=-250

Plug in the values in the formula

`x=(-1.1+-√((1.1)^2-4(0.05)(-250)))/(2(0.05))`

`x=(-1.1+-7.156116265)/(0.1)`

Now make two equations , one with + and one with -

then we solve for x

`x=(-1.1+7.156116265)/(0.1)`

x=60.56

`x=(-1.1-7.156116265)/(0.1)`

x=-82.56