AnswersFL-1200710-Mathematics for College Algebra ASolving Quadratic Equations: Square Root Property

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Ms. Redmon gave her theater students an assignment to memorize a dramatic monologue to present to the rest of the class. The graph shows the times, rounded to the nearest half minute, of the first 10 monologues presented.

Question illustration
A
The median will decrease.
B
The mean will decrease.
C
The median will increase.
D
The mean will increase.
2
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The table shows the heights, in inches, of players on a girls’ basketball team.

Question illustration
A
66
B
68
C
69
D
70
3

Quinn mailed four postcards that each cost $0.25, five letters that each cost $0.44, two large envelopes that each cost $0.80, and one small package for $5.10. Which cost on the list of mailing fees on Quinn’s receipt would skew the mean?

A
the cost of a postcard
B
the cost of a letter
C
the cost of a large envelope
D
the cost of the small package
4

The graph shows the ages of different concertgoers who have backstage passes.

Question illustration
A
A late arrival who is 21 years old with a back-stage pass will make the mean greater than the median.
B
The two holders of back-stage passes whose ages are above 40 make the mean age higher than the median age.
C
The ages of concert-goers with backstage passes are skewed left, so the mean age is less than the median age.
D
A concert-goer who is 18 years old and wins a back-stage pass will pull the mean more than 2 years less than the median.
5

Mr. Li records the measures of the lengths of his students’ handprints. The lengths, in centimeters, are shown in the table.If the class creates a histogram of the data in the table, how many students are in the range 12 cm to 13.9 cm?

Question illustration
A
3
B
4
C
7
D
8
6

Ms. Monroe mixes 200 cubes of 4 different colors for a project. She then uses a scoop to place 20 cubes into each of 10 paper bags. Each group records the number of cubes of each color in a bag. The number of red cubes for the 10 groups are recorded in the graph.

Question illustration
A
The mean number of red cubes is less than the median number of red cubes.
B
The mean number of red cubes is more than the median number of red cubes.
C
The mean number of red cubes is equal to the median number of red cubes.
D
The mean number of red cubes cannot be compared to the median number of red cubes.
7

Which could be Brooke’s sixth quiz score? Select three options.

A
85
B
90
C
83
D
86
E
92
8

The data show the number of pieces of mail delivered to a single home address each day for three weeks.4, 0, 2, 6, 1, 0, 3, 4, 0, 2, 4, 1, 5, 2, 3, 1, 1, 2Which statement is true about a graph representing the data? Select two options.The number line of a dot plot would start at 1.A dot plot would show 7 points for numbers greater than 2.The intervals on a histogram should be 0 to 2, 3 to 4, and 5 to 6.A histogram would have a maximum of 7 bars.A histogram should not show a bar that includes 0 pieces of mail.

A
The number line of a dot plot would start at 1.
B
A dot plot would show 7 points for numbers greater than 2.
C
The intervals on a histogram should be 0 to 2, 3 to 4, and 5 to 6.
D
A histogram would have a maximum of 7 bars.
E
A histogram should not show a bar that includes 0 pieces of mail.
9

The graph shows the number of minutes, to the nearest five minutes, that Sarah spent getting ready for school each morning.

Question illustration
A
The mean will decrease, and the median will stay the same.
B
The median will decrease, and the mean will stay the same.
C
The mean will decrease more than the median, but both will decrease.
D
The median will decrease more than the mean, but both will decrease.
10

There are 8 sophomores on the academic team. At the last competition, they each took the math test. Their scores were 82%, 92%, 76%, 72%, 92%, 74%, 80%, and 78%. What was the median math score of the sophomores?

A
79%
B
82%
C
87%
D
92%

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