#### Answer

(a) $4.12$
(b) $20.00$
(c) $-2.65$
(d) $1.26$

#### Work Step by Step

We can use a calculator to find the values of the following expressions to two decimal places:
(a) $\sqrt{17} = 4.12$
(b) $\sqrt{400} = 20.00$
(c) $-\sqrt{7} = -2.65$
(d) $\sqrt{1.6} = 1.26$