Timed Mini Exam 43 — Timed Mini Exams

Questions in this quiz (10)

1. Subtract.$$6.25-2.78$$

   • $$3.37$$
   • $$3.47$$
   • $$4.47$$
   • $$9.03$$

2. Simplify the radical.$$\sqrt{72}$$

   • $$6\sqrt{2}$$
   • $$8\sqrt{2}$$
   • $$12\sqrt{2}$$
   • $$36\sqrt{2}$$

3. On a map, 5 inches represents an actual distance of 80 miles. At the same scale, what actual distance is represented by 7.5 inches?

   • 100 miles
   • 112 miles
   • 120 miles
   • 128 miles

4. Solve the equation for $$x$$.$$\frac{3x-7}{5}=4$$

   • $$x=7$$
   • $$x=8$$
   • $$x=9$$
   • $$x=11$$

5. The table shows corresponding values of $$x$$ and $$y$$.Which function represents the relationship between $$x$$ and $$y$$?

   • $$y=2x+3$$
   • $$y=3x+2$$
   • $$y=2(3^x)$$
   • $$y=3(2^x)$$

6. $$x^2-7x+12=0$$Which values of $$x$$ satisfy the equation?

   • $$x=2$$ and $$x=6$$
   • $$x=3$$ and $$x=4$$
   • $$x=-3$$ and $$x=-4$$
   • $$x=1$$ and $$x=12$$

7. The graph compares the number of sneezes heard by passengers with their perception of exposure to disease. Based on the line of best fit, approximately how many sneezes correspond to an exposure rating of 10?

   • 30 sneezes
   • 32 sneezes
   • 36 sneezes
   • 40 sneezes

8. The figure consists of a 12-foot square, two semicircles with radius 6 feet, and an unshaded circle with radius 6 feet. What is the area of the shaded portion?

   • $$144-12\pi$$ square feet
   • $$12\pi-144$$ square feet
   • $$144$$ square feet
   • $$144+12\pi$$ square feet

9. A class is divided into five groups. Group A has 6 students, group B has 8 students, group C has 4 students, group D has 5 students, and group E has 4 students. If one student is selected at random, what are the odds that the student is selected from group A?

   • $$7:2$$
   • $$2:9$$
   • $$7:9$$
   • $$2:7$$

10. A restaurant offers 4 salads, 5 entrées, and 3 desserts. A guest selects one salad, one entrée, and one dessert. How many different meals can the guest create?

    • $$12$$
    • $$20$$
    • $$47$$
    • $$60$$