Practice Page
Directions: Choose the best answer for each question.

1.
Express the area of the rectangle shown at the right in terms of x and y, and using exponents.

Choose:
8xy
12xy
8x2y2
12x2y2

pinkrect

 

 

2.
Express the volume of the rectangular solid at the right in cubic units.

Choose:
48a3b2
24a3b2
48a3b3
13a3b2
rectsolid

 

 

3.
Matt and Celine are arguing over the correct simplification to the problem mca.
Matt's Solution: mc2

Celine's Solution:
mc3

mattCeline
Who is correct?
Choose:
Matt
Celine

 

 

4.
Find the missing side of the right triangle shown at the right. An exact answer is expected.
Choose:
14

rad21

15
16
yellowtri

 

 

5.
Baked Alaska is a desert made by putting a one inch coating of meringue around a hemisphere of ice cream. The volume of meringue needed in cubic inches, M(r), is given by the formula:
M(r) = 6.14r2 + 6.14r + 2.094
bakedalaska
  where r is the radius of the ice cream in inches. Find the amount of meringue needed when the radius of the ice cream is 6 inches. Round answer to nearest cubic inch.
 
Choose:
39 in3
76 in3
260 in3 960 in3

 

 

6.
Find the value of x as shown in the rectangle at the right. An exact answer is expected.

Choose:
9rad21b
3rad21
13.7
13.75
bluerect

 

 

7.
The distance, d, in feet that an object on the moon will fall in t seconds is given by the formula d(t) = 2.735t2. How far will an object fall on the moon in 4 seconds?

Choose:
43.76 ft.
32.82 ft.
21.88 ft. 10.94 ft.
moon

 

 

8.
The volume of a sphere is given by the formula:     volsph
Find the volume, in cubic cm, when the radius is 3 cm.

Choose:
36π
12π
108π
8π
spherewireframs

 

 

9.
The height of a triangle is 6ab. The length of the base of the triangle, as shown, is 10ab. Find the area of the triangle in terms of a and b.

Choose:
60a2b2
60ab2
30a2b2
30ab2
purptri

 

 

10.
The total number of soccer games, G, that are scheduled in a league that has n teams, and each team plays every other team twice, is given by the formula G(n) = n2 - n. What is the total number of games scheduled for a league that has 7 teams?

Choose:
49 42
14
7
soccerguys

 

 

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