Topic 1 review

Multiple Choice

Which expression is equivalent to $$\left(6.8^5\right)^6$$

• $$6.8^{11}$$

• $$6.8^1$$

• $$6.8^{30}$$

• $$6.8^6$$

Multiple Choice

Which expression is equivalent to $$\frac{0.9^{10}}{0.9^3}$$

• $$0.9^7$$

• $$0.9^3$$

• $$0.9^{30}$$

• $$0.9^{13}$$

Multiple Choice

Evaluate the expression $$8\ \times5\div\left|\frac{3}{5}-1\frac{2}{3}\right|$$

• $$-37\frac{1}{15}$$

• $$-4\ \frac{11}{16}$$

• $$-37\ \frac{1}{2}$$

• $$37\ \frac{1}{2}$$

Multiple Choice

Which of the following is the correct evaluation of the expression $$\frac{-\frac{1}{4}}{-\frac{4}{5}}$$

• $$-\ \frac{1}{4}\times\ \frac{4}{5}=-\ \frac{1}{5}$$

• $$-\ \frac{1}{4}\times\ \frac{5}{4}=-\ \frac{5}{16}$$

• $$-\ \frac{1}{4}\times\ \left(-\frac{5}{4}\right)=\frac{5}{16}$$

• $$-\ \frac{4}{1}\times\ \left(-\frac{4}{5}\right)=\frac{16}{5}$$

Multiple Choice

Evaluate the expression $$\frac{1}{2}\left(3.5-2\right)^3-3$$

• $$0.1875$$

• $$-1.3125$$

• 80.1875

• -0.75

Multiple Choice

Which expression is equivalent to $$7^5\times7^4$$

• $$7^1$$

• $$7^{20}$$

• $$7^9$$

• $$\left(7^5\right)^4$$

Multiple Choice

five out of nine people own a boat. What is the decimal equivalent for the number of people that own a boat?

• $$0.\overline{6}$$

• $$0.\overline{5}$$

• $$0.56$$

• 0.555

Multiple Choice

if $$-\frac{3}{4}\ +\ 0.4\ =Q$$ Which statement about Q is true

• $$Q>0.5$$

• $$Q\ >0$$

• $$Q\ <0$$

• $$Q\ <\ -\frac{3}{4}$$