Page 57 - Algebra 1

24.
(7)
25.
(7)
Error Analysis Student A and Student B simplified the expression _24 + (2 + 4)2.
Which student is correct? Explain the error.
8
Student A
_24 + (2 + 4)2 8
3 + 62
3 + 36 = 39
Student B
_24 + (2 + 4)2 8
3 + (2 + 16) 3 + 18 = 21
*26.
(6)
*27.
(5)
28.
(3)
29.
(8)
30.
(3)
Geometry A square pyramid has a base with edges of 8 inches and a height of 12 inches.
12 in.
8 in.
a. Use the following formula to find the volume: V = _1 s2h. 3
b. Analyze Which term did you simplify first? Why?
Economics Use the table of the Profit and Loss Report of ABC Company. What
was the total profit or loss for the year? [( ) indicates a loss.]
42
Saxon Algebra 1
Multi-Step Two groups of students measured the length of a tabletop. Group A’s measurement was 56_3 inches. Group B’s measurement was 57_3 inches. If the
4 _1 4
actual length of the tabletop was 57 2 inches, which group’s measurement had the
smaller error?
Error Analysis Two students simplified an expression containing an exponent. Which student is correct? Explain the error.
Speed A giraffe can run 32 miles per hour. What is the speed in feet per hour? Geometry A square photograph measuring 8 inches by 8 inches is positioned
within a 1-inch-wide picture frame as shown.
1 in.
Student A
b2 ·c2·c·b2 ·b=
b2 ·b2 ·b·c2 ·c=b5c3
Student B
b2 ·c2·c·b2 ·b=
b2 ·b2 ·b·c2 ·c=b4c2
a. b. c. d.
What is the area of the photograph?
What is the combined area of the photograph and frame?
What is the area of the frame alone?
If the 1-inch-wide frame is replaced with a 2-inch-wide frame, how much more wall space will be needed to hang the framed photograph?
1st Quarter
2nd Quarter
3rd Quarter
4th Quarter
Profit or Loss
$6 million
($3.5 million)
($2 million)
$5 million
8 in.