91Ó°ÊÓ

Substitute \(x=5\) into each of the following expressions, and then use a calculator to obtain a decimal approximation to each. $$\sqrt{x^{3}}$$

Carry out cach of the following divisions only so far as needed to round the results to the nearest hundredth. $$3.99 \div 0.5$$

Add and subtract as indicated. $$8.3-(1.2+3.4)$$

Add and subtract as indicated. $$(9.7-5.2)-1.4$$

Use a calculator to work. Approximate each of the following expressions to the nearest hundredth. $$2 \sqrt{3}$$

Use a calculator to work. Approximate each of the following expressions to the nearest hundredth. $$5 \sqrt{5}$$

Change each decimal to a fraction, and then reduce to lowest terms. $$0.0625$$

Combine like terms. $$15 x+8 x$$

Problems Work each of the following problems on your calculator. If rounding is necessary, round to the nearest hundred thousandth. $$0.0503 \div 0.0709$$

Simplify each of the following as much as possible, and write all answers as decimals. $$(0.25)^{2}+\left(\frac{1}{4}\right)^{2}(3)$$