What is the surface are of the cylinder with a height 7ft and radius 3ft?

Total area, including top and bottom:  67.7 ft²

Step-by-step explanation:

The area of the sides (only) is A = (circumference of base)(height of cylinder), and in this case                        A = 2(3 ft)(3.14), or

approximately A = 18.8 ft²

If you also want the areas of the base and top of the cylinder, perform the indicated calculations:

A (top and bottom) = 2π(3 ft)² = 48.9 ft²

So that the total surface area is (48.9 + 18.8) ft², or 67.7 ft²

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times