Answer:
50.3
Step-by-step explanation:
Volume = pi * h * r^2 *** Diameter = 2 * radius
<em>Substitute</em>
Volume = pi * 4 * (4/2)^2
<em>Simplify</em>
Volume = pi * 4 * 4
<em>Simplify</em>
Volume = 16 pi, which is approx. 50.3
-35 + 28x = 21
28x = 56
x = 2
You forgot the 1/2 Inches in that,
but the answer is 45 feet.
Answer:
Step-by-step explanation:
Get the equation in the form y = ax2 + bx + c.
Calculate -b / 2a. This is the x-coordinate of the vertex.
To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y.
- that's how you find the vertex of the quadratic function-
<u>Correction</u>
The revenue function for a school group selling n bookmarks is given by R(n) =2n and the total cost function is given by C(n)=144+0.08n. Determine the number of bookmarks sold at which they break-even.
Answer:
75 bookmarks
Step-by-step explanation:
The break-even point is the point at which revenue earned is equal to the cost of production.
Given the cost and revenue functions respectively:
Cost=Revenue
C(n)=R(n)
144+0.08n=2n
144=2n-0.08n
144=1.92n
Divide both sides by 1.92
n=75
When 75 bookmarks are sold, the school group will break even.
