Answer:
Your answer should be 54!
Answer:
616 square centimeters
Step-by-step explanation:
Area of a circle is equal to pi × r^2. In this case, they have asked that you substitute 3.14 or 22/7 for pi, so I will be using 22/7, instead.
Diameter is equal to 2r; to find the radius, simply divide 28 by two. This gives us a radius of 14.
Multiply 14 squared by 22/7:
(22/7)(14^2)
This gives us (22/7)(196); (4312/7); 616.
Therefore, the area of the circle is approximately 616 square centimeters.
Answer:
67 1/2 is a mixed number
Step-by-step explanation:
The volume of a prism, is the area of the cross section X the length:
In this case it is base × height × length:
6 × 4.5 × 2.5 = 67.5cm^3
= 67 1 / 2 as a mixed number
Rent for 6 hours = 21
rent for a hour = 21/6
= $3.5
