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1. Question1 point(s)
If x < 0, is y > 0?
(i) x/y < 0 (ii) y – x > 0CorrectIncorrect
2. Question1 point(s)
Every member of a certain club volunteers to contribute equally to the purchase of a $60 gift certificate. How many members does the club have?
(i) Each member’s contribution is to be $4.
(ii) If 5 club members fail to contribute, the share of each contributing member will increase by $2.CorrectIncorrect
3. Question1 point(s)
Is 5k less than 1,000 ?
(i) 55 + 1 > 3,000
(ii) 5k – 1 = 5k – 500CorrectIncorrect
4. Question1 point(s)
If n is a positive integer, is the value of b – a at least twice the value of 3n – 2n ?
(i) a = 2n – 1 and b = 3n + 1
(ii) n = 3CorrectIncorrect
5. Question1 point(s)
If x is an integer, is x|x|< 2x ? (i) x < 0 (ii) x = - 10CorrectIncorrect
6. Question1 point(s)
If Carmen had 12 more tapes, she would have twice as many tapes as Rafael. Does Carmen have fewer tapes than Rafael?
(i) Rafael has more than 5 tapes.
(ii) Carmen has fewer than 12 tapes.CorrectIncorrect
7. Question1 point(s)
If n is a positive integer and k = 5.1×10n, what is the value of k ?
(i) 6,000 < k < 500,000 (ii) k2= 2,601× 109CorrectIncorrect
8. Question1 point(s)
In the expression above, if xn≠0, what is the value of S ?
(i) x = 2n
(ii) n = 1/2CorrectIncorrect
9. Question1 point(s)
In the rectangular coordinate system above, if OP < PQ, is the area of region OPQ greater than 48 ? (i) The coordinates of point Q are (13,0). (ii) The coordinates of point P are (6,8).CorrectIncorrect
10. Question1 point(s)
If x and y are positive, then x is what percent of y?
(i) 15 is 25 percent of y.
(ii) x is 10 percent of 2y.CorrectIncorrect