Y=x^2+10x+11
y=x^2+x-7
therefore,
x^2+10x+11=x^2+x-7
x^+10x+11-x^2-x+7=0
9x+18=0
x=-2
y=(-2)^2+10(-2)+11= -5
Step-by-step explanation:
it is solved directly by using the formula
Answer:
963 hours
Step-by-step explanation:
I subtracted 20 from the 981
Answer:
10
Step-by-step explanation:
they each go by ten