First lets remove the initial fee
150 is how much she is charging you per hour.
If each hour is 55, lets divide 150 by 55.
She charged you for 2.7 hours (almost 3) of service
Average rate of change is slope. The equation for slope is m=(y2-y1)/(x2-x1). (x2, y2) will be (5, 1) and (x1, y1) will be (-1, 7). Plug in and solve:
(7-1)/(5--1)
6/6
1
Hope this helps!!
Answer:
<h2>C. 97.6 in³</h2>
Step-by-step explanation:
The formula of a volume of a cylinder:
r - radius
H - height
We have
Substitute:
The formula of a volume of a cone:
We have
Substitute:
The volume of the plastic object:
Answer:
5 hours
Step-by-step explanation:
bro all your doing is adding 2 and 3
Answer:
c)-5(3x+2y)(3x-2y)
Step-by-step explanation:
1) lets find out if -45 and 20 have a GCF
-45 and 20 are both dividable by -5 so
-5(9x^2-4y^2)
1) you can see that 9 and -4 are perfect square so:
-5(3x+2y)(3x-2y)
Recheck:
1) lets use FOIL to see if this is right(if its right we will get back our original equation)
-5(9x^2-6xy+6xy-4y^2)
-5(9x^2-4y^2)
-45x^2+20y^2
hope this helps!
