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tracyyahoo
- Master | Next Rank: 500 Posts
- Posts: 147
- Joined: Tue Jun 14, 2011 7:03 am
- Thanked: 3 times
(1) The average ( arithematic mean) cost per book for the 12 books on a certain table is k dollars. If a book that costs 18 dollars is removed from the table and replaced by a book that costs 42 dollars, then in terms of k, what will be the average cost per book, in dollars, for the books on the table???
a) k+2 b) k-2 c) 12+24/k d)12-24/k e)12k-6
I chose B, why OA A???
(2) 10000^100 is equivalent to which of the following??
I (100^2)(100^100)
II 100^200
III 10^400
A) None B)I only C)III only D)II and III only E)I,II,III
I chose B why the hell OA is D
(3)Acoording to a certain estimate, the depth N(t), in centimeters, of the water in a certain tank at t hours past 2:00 in the morning is given by N(t)= -20(t-5)+500 for 0=t=10. According to this estimate, at what time in the morning does the depth of the water in the tank reach its maximum???
a) 5:30 b) 7:00 c) 7:30 d) 8:00 e)9:00
a) k+2 b) k-2 c) 12+24/k d)12-24/k e)12k-6
I chose B, why OA A???
(2) 10000^100 is equivalent to which of the following??
I (100^2)(100^100)
II 100^200
III 10^400
A) None B)I only C)III only D)II and III only E)I,II,III
I chose B why the hell OA is D
(3)Acoording to a certain estimate, the depth N(t), in centimeters, of the water in a certain tank at t hours past 2:00 in the morning is given by N(t)= -20(t-5)+500 for 0=t=10. According to this estimate, at what time in the morning does the depth of the water in the tank reach its maximum???
a) 5:30 b) 7:00 c) 7:30 d) 8:00 e)9:00
