Timed Mini Exam 21 — Timed Mini Exams

Questions in this quiz (10)

1. Arrange the following numbers in order from least to greatest:$$-1.6,\ -\frac{7}{4},\ 0.58,\ \frac{3}{5},\ 1.02$$

   • $$-\frac{7}{4},\ -1.6,\ 0.58,\ \frac{3}{5},\ 1.02$$
   • $$-1.6,\ -\frac{7}{4},\ 0.58,\ \frac{3}{5},\ 1.02$$
   • $$-\frac{7}{4},\ -1.6,\ \frac{3}{5},\ 0.58,\ 1.02$$
   • $$0.58,\ \frac{3}{5},\ 1.02,\ -1.6,\ -\frac{7}{4}$$

2. Which expression represents $$7{,}260{,}000{,}000$$ in scientific notation?

   • $$7.26\times10^8$$
   • $$7.26\times10^9$$
   • $$72.6\times10^9$$
   • $$7.26\times10^{-9}$$

3. A highway map uses a scale of $$1$$ inch to represent $$18$$ miles. Two cities are $$4.5$$ inches apart on the map. What is the actual distance between the cities?

   • $$72$$ miles
   • $$81$$ miles
   • $$90$$ miles
   • $$108$$ miles

4. Which expression is a factored form of the following expression?$$12x^4y^3-18x^2y^5$$

   • $$6x^2y^3(2x^2-3y^2)$$
   • $$6x^2y^3(2x^2-3y)$$
   • $$6xy^3(2x^3-3xy^2)$$
   • $$3x^2y^3(4x^2-6y^2)$$

5. What is the solution set of the following compound inequality?$$5$$ < $$3x+2$$ < $$20$$

   • $$x$$ < $$1$$
   • $$1$$ < $$x$$ < $$6$$
   • $$3$$ < $$x$$ < $$18$$
   • $$x$$ > $$6$$

6. What are the two solutions to the following equation?$$2x^2+x-15=0$$

   • $$-3$$ and $$\frac{5}{2}$$
   • $$3$$ and $$-\frac{5}{2}$$
   • $$-5$$ and $$3$$
   • $$-\frac{3}{2}$$ and $$5$$

7. On which interval is $$g(x)$$ decreasing?

   • $$[-2,0]$$
   • $(0,2)$$
   • $$(-1,1)$$
   • $$(-6,6)$$

8. The side length of square $$A$$ is twice the side length of square $$B$$. How many times as large is the area of square $$A$$ as the area of square $$B$$?

   • $$2$$ times as large
   • $$4$$ times as large
   • $$6$$ times as large
   • $$8$$ times as large

9. A rectangle has a perimeter of $$70$$ inches. One side of the rectangle is $$15$$ inches long. What are the lengths of the other three sides?

   • $$15,\ 15,\ 20$$ inches
   • $$15,\ 20,\ 20$$ inches
   • $$15,\ 20,\ 35$$ inches
   • $$20,\ 20,\ 35$$ inches

10. The table shows the number of hours Sofia worked each day during three weeks.What is the median number of hours Sofia worked per day?

    • $$3$$ hours
    • $$4$$ hours
    • $$5$$ hours
    • $$6$$ hours