Please help me solve this

Mathematics

2 answers:

Phoenix [80]3 years ago

7 0

Answer:

1/49

Step-by-step explanation:

1/7^2 is merely 1^2/7^2 which is 1/49

Hope this helps :D plz mark brainliest if correct.

Basile [38]3 years ago

6 0

I’m literally only typing something because it said I needed 20 something characters. If you give a brainliest, give it to the dude who answered it first, I’m just confirming that he is indeed correct. Have a nice day!!

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2. Find the surface area of a cylindrical can of tennis balls if the height of the can is 8

alina1380 [7]

Answer:

125.7 square inches

Step-by-step explanation:

The surface area of a cylinder is the sum of the areas of the two circles on each end and the area encircling "rectangle". Note that the length of this "rectangle" is the height of the can, while the width is the perimeter of the circle. The full equation is:

$A=2 \pi r^2 +2 \pi r h\\A=2 \pi r(r+h)\\A=2 \pi (2)(2+8)\\A=40 \pi\\A=125.7$