Question

A new cylindrical can with a diameter of 7 cm is being designed by a local company. The surface area of the can is 130 square centimeters. What is the height of the can? Estimate using 3 14 for x, and

round to the nearest hundredth. Apply the formula for surface area of a cylinder SA= 2B+ Ph.

Answer 1

see below

Explanation:

`SA = 2\pi r \ \ (h+r)`

`130=2(3.14)(7/2)(h+(7/2))`

`130/(2(3.14)(7/2)) = h+(7/2)`

`5.91=h+(7/2)`

`h = 5.91-3.5`

Answer Below:

• 
  `\bold{x=2.41}`