Question

Help?????????????????​

Answer 1

`1)-√(2.25) = - \sqrt{225 * {10}^( - 2) } \\ = -√(225) * \sqrt{ {10}^( - 2) } \\ =- 15 * {10}^( - 1) =- 1.5 = -(3)/(2) \\ 2) -(3)/(2) = -1.5 \\ thank \: you`