Answer:
D
Step-by-step explanation:
SA = bh + (s1 + s2 + s3)H is the formula to find out the surface area
b is base, h is height (small height), s's are the sides, H is the height (longer one)
SA = 12(9) + (10 + 10 + 12)32
SA = 108 + (32)32
SA = 108 + 1024
SA = 1132
Answer:
47
Step-by-step explanation:
x=9 y=2 5x+y= so you need to multiply x (9) by 5 9x5= 45 45+2=47
Answer: 133
Step-by-step explanation:
171 for 9 hours
171/9 equals 19
So 19 dollars per hour
7 hours times 19 dollars per hour equals 133
Answer:
let's devide the left equation by -1/2 to get it into a form that starts with y=...
y=-x-10
the right equation is
y=2x+2
since y=y the following must also be true (for the point where the two lines intersect):
-x-10=2x+2
add 1x on each side
-10=3x+2
subtract 2 on each side
-12=3x
devide by 3
-4=x
that's the x-information of the point. to get the y-information we plug it into one of the two function, any is fine actually, because the point we are looking for is on both of them after all.
I plug x = -4 into the second equation and get
y = 2*(-4) +2
y = -6
the two lines intersect at (-4,-6)
