Answer:
(5x-7)-(2x+3)/6x+11 = 8/3
cross multiplying...
3( 5x - 7 -2x - 3) = 8 ( 6x + 11)
3( 3x - 10 ) = 48x + 88
9x - 30 = 48x +88
9x - 48x = 88 + 30
- 39x = 118
x = - 118 / 39
x = - 3.026 (approx.)
Answer:
x= 8 and x=-9
Step-by-step explanation:
The x intercepts are found when we set y = 0
0 = (x-8) (x+9)
Using the zero product property
x-8 =0 and x+9=0
x= 8 and x=-9
4000/80 =50
50•1 1/2
The answer is 75 hours
Answer:
x = (-1/4)(1 ± √33)
Step-by-step explanation:
Let's "complete the square."
This procedure requires taking half of the coefficient of x and squaring it:
Half of 1/2 is 1/4, and the square of 1/4 is 1/16.
Then we have:
x^2 + (1/2)x + 1/16 = 2 + 1/16 = 33/16
Rewriting x^2 + (1/2)x + 1/16 as the square of a binomial, we get:
(x + 1/4)^2 = 33/16
We must solve this for x.
Taking the sqrt of both sides, we get:
x + 1/4 = ±√33/4, or:
x = -1/4 ±√33/4, or
x = (-1/4)(1 ± √33)
There you go. I explained in the picture hope it helps