Page 556 - Algebra 1

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Estimate What is the lesser value of q in the solution set of ⎢q - 24.9 = 5.1?
Cell Phones You pay $10 a month plus $0.30 per minute for your cell phone. You
budget $20 each month for your bill. To find the maximum minutes you can use your phone, solve the inequality 10 + 0.3m ≤ 20.
Probability Write a rational function that expresses the following probability. Find the probability y of randomly choosing a red marble out of a bag full of x number of marbles that contains only one red marble.
Verify Show that -8u5y + 56u4y - 80u3y = -8u3y(u - 5)(u - 2). Multiple Choice Which expression is the complete factored form of
3x6 + 6x5 - 45x4 ?
A 3x4(x-3)(x+5) B x4(3x-9)(x+5)
C x4(x - 3)(3x - 15) D (3x - 9)(x5+ 5x4)
Use the graph to find the theoretical probability of receiving each grade.
10 8 6 4 2 0
Frequency of Grades
ABCDE
Grade
A Punnett square shows the probability distribution for genes. A short pea plant contributes two short genes, labeled “t.” A tall pea plant contributes two tall genes, labeled “T.” The plant will be short if it inherits the combination “tt.” “TT” means the plant will be tall. The combination “Tt” also results in a tall plant. What is the probability that this plant will be short? Explain your answer.
Error Analysis Two students use an equation to find the probability of getting heads on four coins and rolling a 2 or 3 on two number cubes labeled 1–6. Which student is correct? Explain the error.
Multi-Step Veejay is throwing a party. It costs $75 to rent a skating arena plus $3 per person to rent skates. It costs $100 to rent a bowling alley plus $2 per person to rent bowling shoes. How many people would Veejay have to invite to his party for the bowling alley to cost more than the skating arena?
a. Write an inequality to answer.
b. Solve the inequality.
c. Explain the correct domain of the solution set.
Biology
T
T
t
Tt
Tt
t
Tt
Tt
Student A
P(4 heads and tw_o 2 or 3) =
_1 4 _1 _1 2
(2)· (6 · 6)= 20,736
1
Student B
P(4 heads and two 2 or 3) =
_1 4 _1 2 _1 (2)·(3)= 144
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Lesson 82 541