(lol were both doing unit rate rn im just pausing to do some brainly questions)
We know that Unit Rate can be found by dividing.
i think you want the answer right now so if you need an explanation then tell me in the comments
Its number A. Hope this helped!
We can create two equations here:
(1) Volume = area of square * height of box
85.75 = s^2 h
(2) Cost = 3 * area of square + 1.5 * area of side box
C = 3 s^2 + 1.5 s h
From (1), we get:
h = 85.75 / s^2
Combining this with (2):
C = 3 s^2 + 1.5 s (85.75 / s^2)
C = 3 s^2 + 128.625 s-
Taking the 1st derivative and equating dC/ds =
0:
dC/ds = 6s – 128.625 / s^2 = 0
Multiply all by s^2:
6s^3 – 128.625 = 0
6s^3 = 128.625
s = 2.78 cm
So h is:
h = 85.75 / s^2 = 85.75 / (2.78)^2
h = 11.10 cm
So the dimensions are 2.78 cm x 2.78 cm x 11.10 cm
The total cost now is:
C = 3 (2.78)^2 + 1.5 (2.78) (11.10)
C = $69.47
All work shown, I hope that this works!
Answer: 10 + 6 + 2.00x + 1.50x = Answer
Step-by-step explanation:
The volume of a cylinder can be represented by 
, where 
is the radius and 
is the height.
In this case, we are told that 
, 
, and 
.
Plug in the known values.
Find the power.
Multiply from left to right.
