2/12 3/18 4/24 5/30 i think this is it
Answer:
<u>The correct answer is C. A(x) = 480/x +2x²</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the problem correctly:
Volume of a rectangular prism with square base = 120 cubic feet
Side of the square base = x
Height of the prism = h
2. Write the surface area of the prism as a function A(x) of the length of the side of the square x.
Let's find out A(x) this way:
Volume of a rectangular prism with square base = 120 cubic feet
x² * h = 120
h = 120/x²
Now, let's substitute h in the surface area formula, this way:
Surface area = 2 * side of the square base² + 4 * side of the square base * height
A(x) = 2x² + 4x * 120/x² (Recall 120/x² = h and side of the square = x)
A(x) = 2x² + 480x/x²
<u>A(x) = 2x² + 480/x </u>
<u>The correct answer is C. A(x) = 480/x +2x²</u>
The volume of a cube is just cubing one side (1 times one times 1). So you just count up the cubes I guess!
Answer:
$68 to hire and 28.25 per hour to hire both
Step-by-step explanation:
Answer:
About 32º
Step-by-step explanation:
since 17 m is one leg, and 20m is the hypotenuse, we can write:
cos (x) = 17/20
x = cos-1(17/20)
x is about 32º
