Post by P.Q. on Mar 21, 2012 14:10:59 GMT -7
1) Which is a zero of the absolute value function f(x) = 1 - 3|3x5 - 4x2|?
A) -1.07
B) -0.65
C) 0.65
D) 1.12
2) At what x-coordinate does f(x) = |5x + 1| have its minimum value?
A) -1
B) -1/5
C) 1
D) 1/5
3) What are the values for x when |2x + 2| = 9?
A) -3.5 and 3.5
B) -3.5 and 5.5
C) -2.5 and 6.5
D) 3.5 and -5.5
4) Which expression is equivalent to m4/2r3/2 in simplified form?
A) square m4 r3
B) square mr
C) m2 square r3
D) m2 r square r
5) 200 elementary school students were surveyed to find their blood groups. Of those, 55 were of blood group A, 85 of blood group B, and 21 of blood group O. What is the probability that a randomly chosen student has either blood group A or blood group B?
A) 0.25
B) 0.60
C) 0.70
D) 0.81
6) Solve the inequality. x2 + 2x < 1
A) x=1
B) x= -1
C) (1- square 2) < x < (1+ square 2)
D) (-1- square 2) < x < (-1+ square 2)
7) Michael has 4 red shirts, 3 green shirts, and 5 blue shirts in his closet. If he randomly selects a shirt what is the probability that he chooses green or red?
A) 1/3
B) 1/4
C) 5/12
D) 7/12
A) -1.07
B) -0.65
C) 0.65
D) 1.12
2) At what x-coordinate does f(x) = |5x + 1| have its minimum value?
A) -1
B) -1/5
C) 1
D) 1/5
3) What are the values for x when |2x + 2| = 9?
A) -3.5 and 3.5
B) -3.5 and 5.5
C) -2.5 and 6.5
D) 3.5 and -5.5
4) Which expression is equivalent to m4/2r3/2 in simplified form?
A) square m4 r3
B) square mr
C) m2 square r3
D) m2 r square r
5) 200 elementary school students were surveyed to find their blood groups. Of those, 55 were of blood group A, 85 of blood group B, and 21 of blood group O. What is the probability that a randomly chosen student has either blood group A or blood group B?
A) 0.25
B) 0.60
C) 0.70
D) 0.81
6) Solve the inequality. x2 + 2x < 1
A) x=1
B) x= -1
C) (1- square 2) < x < (1+ square 2)
D) (-1- square 2) < x < (-1+ square 2)
7) Michael has 4 red shirts, 3 green shirts, and 5 blue shirts in his closet. If he randomly selects a shirt what is the probability that he chooses green or red?
A) 1/3
B) 1/4
C) 5/12
D) 7/12
