Page 396 - Algebra 1

21.
(43)
23.
(43)
24.
(45)
25.
(48)
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(49)
27.
(53)
28.
(52)
29.
(51)
30.
(50)
___ Simplify 9x - 81 . 22. Simplify (x - 4)(2x - 3) .
4x2 - 36x (43) 7x - 28
Physics According to the Theory of Relativity, and as represented by the
equation below, the mass of a particle changes with its velocity. When is the rational expression of the equation undefined? (Hint: Think of the fraction in the denominator as a single variable.)
Multi-Step The 5_1 cups of orange juice and half of the apricot juice left in the 2
refrigerator added up to no more than 10 cups when combined in the pitcher. a. Translate the sentence into an inequality.
b. Translate the inequality into words. Weather Thetableshowsthetotalsnowfall
amounts for five months in Fargo, North Dakota, and St. Paul, Minnesota. Based on the measures of central tendency, which city receives less snow over the winter on average?
Write Create a table of values and a graph for the equation 4x - 2y = 10. Explain how the three representations are related.
Energy The amount (in billions of dollars) spent on natural gas N and electricity E by a randomly selected country in a survey can be modeled by the equations below, where t is the number of years since the survey began. Write an expression that models the total amount A (in billions of dollars) spent on natural gas and electricity by this country’s residents.
N = 1.521t2 - 2.304t + 56.659
E = -0.104t2 + 5.879t + 196.432
Formulate Kami challenged her classmate to find the pattern in a logic puzzle. When she says 8, she means 9. When she says 16, she means 8. Find the equation of the line that passes through the two points that represent the data in the problem. Use the equation to pre_dict what Kami means when she says -8.
Simplify the rational expression 4m - 8, if possible. Identify any excluded values. 2m - 4
Analyze Grace is making applesauce for a party. She has enough apples for 10 servings. If each guest gets 1 serving, how many guests could come to the party? Would a graph of this situation be helpful? Explain.
_2
m2 = m0 , m = rest mass, v = velocity, c = speed of light _2 0
1- v c2
Date
Fargo, North Dakota
St. Paul, Minnesota
November 2006
0.2 in.
0.2 in.
December 2006
5.4 in.
4.3 in.
January 2007
2.9 in.
5.5 in.
February 2007
10.9 in.
12.6 in.
March 2007
9.4 in.
3.6 in.
Lesson 58 381