Question

Round to the nearest tenth

Answer 1

a ≈ 10.2

Explanation:

`a^(2)` +
`b^(2)` =
`c^(2)`

`a^(2)` +
`11^(2)` =
`15^(2)`

`a^(2)` + 121 = 225 Subtract 121 from both sides

`a^(2)` +121 - 121 = 225 - 121

`a^(2)` = 104

`\sqrt{a^(2) }` =
`√(104)`

a ≈ 10.2