Answer:
315 (D)
Step-by-step explanation:
210/60 to get donuts per minute = 3.5 donuts per minute
3.5x90= 315
Here's the solution :
slope of the line is equal to :
slope of given line = 3
I think its 672 because * hrs a day is 56 and when you multiply that by 12 its 672<span />
Answer:
If AB and CD are perpendicular, (slope of AB) x (slope of CD) = -1
9/a = -1
a = -9
sub x=1, a(1)^2 +b(1) + c=0,
a+b+c=0______eqn 1
sub x=-1, a(-1)^2+b(-1)+c=2
a-b+c=2_______eqn 2
sub x=2, a(2)^2+b(2)+c=8
4a+2b+c=8______eqn 3
from eqn 1
c=-a-b
eqn2
a-b-a-b=2
-2b=2
b=-1
eqn3
4a + 2b -a-b=8
3a+b=8
3a+(-1)=8
3a-1=8
3a=9
a=3
c=-a-b
c=-3--1
c=-2
