Answer:

Step-by-step explanation:
<u>Surface Area and Volume of a Cube</u>
Given a cube of side length a, the surface area is:

The volume is calculated as:

It's given the surface area of a cube:

We can find the side length a by solving for a:



a = 13 cm
Now compute the volume:


Answer: a) 2197 cm^3
3x + y = 2x + y
3x - 2x = y - y
x = 0
so the answer is (x,y) (0,4)
The base is 6.
In order to find this, we can set the legs equal to each other since legs have the same length in an isosceles triangle.
x + 1 = -x + 7
2x + 1 = 7
2x = 6
x = 3
Now that we have the value for x, we can plug into the equation to get the value for the base.
3x - 3 = base
3(3) - 3 = base
9 - 3 = base
6 = base
Find the intersection point between the 2 restraint equations:
30 - 2x = 12 - \frac{1}{2} x \\ \frac{3}{2} x = 18 \\ x = 12
Substitute back in to find y-value:
y = 30 - 2(12) = 6
P is maximized at point (12,6)
P = 9(12)+9(6) = 162
Step-by-step explanation:
