Timed Mini Exam 40 — Timed Mini Exams

Questions in this quiz (10)

1. Which list shows the numbers in order from least to greatest?

   • $$6.8,\ 6\frac{3}{5},\ 7\frac{3}{10},\ 7.8,\ 7.9$$
   • $$6\frac{3}{5},\ 6.8,\ 7\frac{3}{10},\ 7.8,\ 7.9$$
   • $$6\frac{3}{5},\ 7\frac{3}{10},\ 6.8,\ 7.8,\ 7.9$$
   • $$7.9,\ 7.8,\ 7\frac{3}{10},\ 6.8,\ 6\frac{3}{5}$$

2. Simplify the following expression completely:$$\sqrt{72}$$

   • $$3\sqrt{2}$$
   • $$6\sqrt{2}$$
   • $$8\sqrt{2}$$
   • $$12\sqrt{2}$$

3. The following table shows changes in the price of one share of stock over four weeks:If the stock was worth $$\$20$$ at the beginning of week 1, what was its value at the end of week 4?

   • $$\$36$$
   • $$\$38$$
   • $$\$40$$
   • $$\$48$$

4. Suppose that $$x$$ is a rational number and $$4(x-3)=20$$. Which equation must also be true?

   • $$x=2$$
   • $$x=5$$
   • $$x=8$$
   • $$x=17$$

5. The values of $$x$$ and $$y$$ in the table represent a linear function:Which equation represents this function?

   • $$y=2x+1$$
   • $$y=3x+1$$
   • $$y=3x-1$$
   • $$y=6x+1$$

6. What are the coordinates of the vertex of the quadratic function shown in the graph?

   • $$(-4,-3)$$
   • $$(-3,-4)$$
   • $$(3,-4)$$
   • $$(0,5)$$

7. The bar graph shows the total sales, in thousands of dollars, for four product versions during July. Which two products had combined sales of more than $$\$50{,}000$$?

   • Products $$1$$ and $$2$$
   • Products $$2$$ and $$3$$
   • Products $$2$$ and $$4$$
   • Products $$1$$ and $$3$$

8. What is the volume of the rectangular prism shown in the figure?

   • $$6$$ cubic centimeters
   • $$24$$ cubic centimeters
   • $$48$$ cubic centimeters
   • $$108$$ cubic centimeters

9. A class has $$30$$ students, consisting of $$16$$ girls and $$14$$ boys. Three students are selected one at a time without replacement. To the nearest whole percent, what is the probability that all three selected students are boys?

   • $$7\%$$
   • $$9\%$$
   • $$14\%$$
   • $$47\%$$

10. A spinner is divided into $$10$$ equal sections numbered $$1$$ through $$10$$. If the spinner is spun once, what is the probability that it lands on a number less than $$5$$?

    • $$\frac{1}{5}$$
    • $$\frac{2}{5}$$
    • $$\frac{1}{2}$$
    • $$\frac{4}{5}$$