January 26, 2012
Bell Ringer
#1 Left Side
#2 Right Side
What is the value of
x in
2x + 3 = 13?
What is the probability
of rolling a 5 on a dice
numbered 1 through
6?
A. x = 3.5
B. x = 5
C. x = 8
D. x = 23
A. 1/6
B. 5/6
C. 1
D. 6
January 26, 2012
Solving Two-Step Equations
2x - 4 = 22
January 26, 2012
3x + 4 = 19
January 26, 2012
-7x + 12 = 54
January 26, 2012
Get out a new blank sheet of
paper which you will be using for
your homework
4y + 1 = 13
January 26, 2012
Homework
Worksheet 3-3D-1 odds
January 26, 2012
Answers to worksheet 7-4
1. rectangular prism
6 rectangular faces
12 edges
8 vertices
2. triangular pyramid
4 triangular faces
6 edges
4 vertices
3. rectangular pyramid
1 rectangular face
4 triangular faces
8 edges
5 vertices
4. pentagonal prism
5 rectangular faces
2 pentagonal faces
15 edges
10 vertices
5. triangular prism
3 rectangular faces
2 triangular faces
9 edges
6 vertices
6. hexagonal prism
1 hexagonal face
6 triangular faces
12 edges
7 vertices
7. pentagonal pyramid
1 pentagonal face
5 triangular faces
10 edges
6 vertices
8. rectangular pyramid
1 rectangular face
4 triangular faces
8 edges
5 vertices
9. hexagonal prism
2 hexagonal faces
6 rectangular faces
18 edges
12 vertices
January 26, 2012
Section 7-5 Volume of
Cylinders and Prisms
Volume of a prism or cylinder
is the area of the base B times the height h or
V = Bh
January 26, 2012
Find the volume of each solid. Use 3.14 for pi.
Round to the nearest tenth if necessary.
6 in
2 in
9 in
January 26, 2012
Find the volume of each solid. Use 3.14 for pi.
Round to the nearest tenth if necessary.
4m
12 m
January 26, 2012