16x^4-81y^4 difference of perfect squares...
(4x^2-9y^2)(4x^2+9y^2) that's one of the equivalents...
(2x+3y)(2x-3y)(4x^2+9y^2) that's another one of them...
1. 15/3:3/3
2. 5:1
1. find the same denominator
2. divide by denominator
Answer: 2 7/10
Step-by-step explanation:
113.04 is the volume
V = pi x r^2 x h
3.14 x 2^2 x 9 = 113.04
