The 1st choice, the third and the fifth are correct
because 26/9 = 3
and 12/4 = 3
and 21/7 = 3
2x^2 -5x -3 = 0
D = 25 +24 = 49
x_1,2 = (5+/- sqrt49)/4 = (5+/-7)/4 = -2/4 = -1/2 and 12/4 = 3
x_1,2 = -1/2 and 3
hope this will help you
Since $7.75 is the hourly salary, and last week she worked 30 hours, she earned $7.75 * 30 which is $232.50.
Meig earned $232.50
The third option is quadratic
<span>f(x)= 6x-5 and g(x)=5x^2-4
(fog) (x)= 6(g) - 5
6(5x^2 - 4) - 5
30x^2 - 24 - 5
30x^2 - 29</span>
