In a survey of students, each student selected from a list of 12 songs the 2 songs that the student liked the best. If each song was selected 4 times, how many students were surveyed?
A. 96
B. 48
C. 32
D. 24
E. 18
Which of the following inequalities has a solution set that, when graphed on the number line, is a single segment of finite length?
A. x^4 >= 1
B. c^3 <= 27
C. X^2 >- 16
D. 2<= |x|<=5
E. 2<=3x-4<=6
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jayhawk2001
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12 songs selected 4 times = total of 48 songs.jc114 wrote:In a survey of students, each student selected from a list of 12 songs the 2 songs that the student liked the best. If each song was selected 4 times, how many students were surveyed?
A. 96
B. 48
C. 32
D. 24
E. 18
Each student selects 2 songs. Hence total number of students
= 48/2 = 24
Is it D?
Hmm, "finite" length seems to the main clue herewrote: Which of the following inequalities has a solution set that, when graphed on the number line, is a single segment of finite length?
A. x^4 >= 1
B. c^3 <= 27
C. X^2 >- 16
D. 2<= |x|<=5
E. 2<=3x-4<=6
A - Just taking positive values of x, x >= 1 which is an infinite line
B - c <= 3. Again infinite line
C - imaginary values?
D - For positive values of x, 2 <= x <= 5 (bounded line).
For negative values of x, x < -2 and x > -5 (bounded line)
But this is not a single segment
E - 3x-4 >= 2 implies x >= 2.
3x-4 <= 6 implies x <= 10/3.
This is a single line that is bounded to limits
I'm going to go with E.
OA please.
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maolivie
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I got D for the first one. If each song was selected twice, and there were 2 songs to chose from, that means that there were a total of 48 picks. But since they have to be in pairs of 2, you have to divide 48 by 2, so I got 24. This sounds wrong though because it seems too few...
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Cybermusings
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In a survey of students, each student selected from a list of 12 songs the 2 songs that the student liked the best. If each song was selected 4 times, how many students were surveyed?
A. 96
B. 48
C. 32
D. 24
E. 18
12 songs... and each song is selected 4 times....Thus there are 4*12 = 48 selections
Since each student makes 2 selections....there were 24 students
Which of the following inequalities has a solution set that, when graphed on the number line, is a single segment of finite length?
A. x^4 >= 1
B. c^3 <= 27
C. X^2 >- 16
D. 2<= |x|<=5
E. 2<=3x-4<=6
A. 96
B. 48
C. 32
D. 24
E. 18
12 songs... and each song is selected 4 times....Thus there are 4*12 = 48 selections
Since each student makes 2 selections....there were 24 students
Which of the following inequalities has a solution set that, when graphed on the number line, is a single segment of finite length?
A. x^4 >= 1
B. c^3 <= 27
C. X^2 >- 16
D. 2<= |x|<=5
E. 2<=3x-4<=6
