Page 307 - Algebra 1

Simplify.
15.
(39) )
3 4 *17. (45)
18.
(36)
19.
(37)
20.
(38)
21.
(41)
22.
(42)
23.
(43)
____2 gt(gth -3th+ t) 16. (-8x4)
d2 d 5 (40) 3
Measurement Write an inequality to represent the value of the diameter of a circle
*24.
(43)
25.
(44)
Justify Simplify the rational expression _6 - 6x . Explain your reasoning. 9 - 9x
Find the slope of the line containing the points in the table.
that has a circumference greater than 5 inches.
Scale Models A designer is making a model of a room. The model is 9 inches by 15 inches. If the scale factor is 1 in.:10 in., what are the dimensions
of the room?
Multi-Step At the end of 2006, the U.S. debt was $4.9 trillion. The population was approximately 300 million.
a. Write these amounts in scientific notation.
b. Divide the debt by the population to find the approximate debt per person in the United States.
Justify Show that the GCF of the polynomial 27x2y3z + 12xy2z is 3xy2z. Then factor the polynomial.
Fill Rate Ailani places a hose in a partially filled swimming pool to fill it. The table shows the number of gallons in the pool over time. Find the rate at which the hose adds water.
What is 120% of 250?
Multiple Choice Which one of the following rational expressions cannot be further
Time (min)
10
15
30
60
Water (gal)
15,048.5
15,072.75
15,145.51
15,291
A7x+1 B x2 __
simplified?
5x2 - x 15 - x C x2 + 1 D 8(2 - x)
__
x2 - 3x 6 - 3x
x
y
−8
−1
−4
−2
0
−3
4
−4
8
−5
26.
(44)
Find the slope of a line containing the points (1, 7) and (5, 8).
292
Saxon Algebra 1