Number of hours Xavier worked on Monday = 10 hours
Number of hours Xavier worked on Tuesday = 15 hours
Total pay received by Xavier = $280
Total number of hours worked by Xavier = (10 + 15) hours
= 25 hours
Rate per hour = 280/25 dollars per hour
= 11.2 dollars per hour
The formula to find the discriminant equals D = b^2-4ac.
(Quadratic equations have the formula ax^2+bx+c. A = -1, B = +4, C = -2.)
D = 4^2-4(-1)(-2). 8-8 = 0.
0 = 1 solution
-D = 0 solutions
+D = 2 solutions
The discriminant equals 0, also establishing that if you were asked to find the solutions, there would only be one.
Answer:
-x^2+6x+2
Step-by-step explanation:
1. Calculate
3x^2+5x-8-4x^2+x-6 = -x^2+6x+2
Answer:
x=-2
Step-by-step explanation:
branliest pls
