Question

Can someone please help me with the first 2 questions?

Answer 1

Answer: a) a= 10.47

Explanation:

a) a²=9.3²- 4.8²

a²=86.49+23.04

a²= 54.45

a=
`\sqrt 109.53`

a= 10.47

Answer 2

a) 10.47

b) 10.23