Answer:

Step-by-step explanation:

Step-by-step explanation:
first of all you times every number with two 2(n-7) then collect like terms then divide
Answer:
This formula:
Cylinder Volume = π • r² • height
Volume = PI * 4 ^2 * 5
Volume = PI * 16 * 5
Volume = 251.327412 cubic inches
Step-by-step explanation:
or 
Step-by-step Explanation :
As the given fraction is an improper fraction, it is hard to divide properly. Either :
☆ You can write what it is given as per question for the answer.
☆ Else, by dividing, we will get a huge value. In this case, we get it as 
Answer:
360 cm^2.
Step-by-step explanation:
Area of the base = 10*10 = 100 cm^2.
We find the slant height of the sides using Pythagoras:
h = sqrt ( 12^2 + 5^2)
h = sqrt 169
h = 13.
Area of the triangular sides = 4 * 1/2 * 10* 13
= 260 cm^2
So the total surface area = 100 + 260
= 360 cm^2.