Part 1 — Full Practice Exam 10

Questions in this quiz (5)

1. If $$z=-2$$, what is the value of $$\frac{z^3+4z+2}{z^2+1}$$?

   • $$-3.5$$
   • $$2.8$$
   • $$-2.8$$
   • $$-2$$

2. Each of $$6$$ digital music drives can hold up to $$4.8$$ hours of music. Each drive contains more than half of its capacity but is not completely full. Which inequality represents the total number of hours of music, $$x$$, stored on all $$6$$ drives?

   • $$14.4$$ < $$x$$ < $$28.8$$
   • $$0$$ < $$x$$ < $$14.4$$
   • $$0$$ < $$x$$ < $$28.8$$
   • $$2.4$$ < $$x$$ < $$4.8$$

3. Traveling at an average speed of $$72$$ miles per hour, Malik drives $$180$$ miles. After stopping for $$2$$ hours, he makes the return trip over the same distance at the same speed. How much total time elapses between Malik's original departure and final return?

   • $$2.5$$ hours
   • $$5$$ hours
   • $$4.5$$ hours
   • $$7$$ hours

4. The average temperature in August in Harbor City is $$3$$ times the average temperature in January. If the average temperature in August is $$75$$ degrees Fahrenheit, which equation can be used to determine the average January temperature, $$t$$?

   • $$t+3=75$$
   • $$3t=75$$
   • $$\frac{t}{3}=75$$
   • $$75t=3$$

5. A farm ships $$40{,}000$$ oranges. During transportation, $$15\%$$ of the oranges are damaged. Afterward, insects destroy $$10\%$$ of the remaining oranges. How many oranges remain?

   • 30600