Question

What is the value of the expression a2 + b3 when a= 1/3 and b= 1/2 ?

Answer 1

B.
`(17)/(72)`

Explanation:

`{a}^(2) + {b}^(3) \\ \\ = \bigg( (1)/(3) \bigg)^(2) + \bigg( (1)/(2) \bigg)^(3) \\ \\ = (1)/(9) + (1)/(8) \\ \\ = (8 + 9)/(9 * 8) \\ \\ = (17)/(72) \\`