Answer: 21
Step-by-step explanation: (If you're serious it's 19)
Answer:
Step 1: Transpose everything to one side
12. x²+16x+15-10x+4=0
Step 2: Add the like terms
x² + (16x - 10x) + 15 + 4=0
x² + 6x + 19=0
Step 3: Use the quadratic formula to get the value(s) of x.
a=1 b=6 c=19

therefore, x=... or x
5.B
6.D
7.A
8.B
9.A
10.C hsvs whehsg
Answer:
Using the slope-intercept form, the slope is 3 .
Step-by-step explanation: