each series of numbers has its own pattern. please help me to identify it and also what the next number is. thanks...
a. 95, 36, 15, ?
b. 73, 61, 56, 62, ?
c. 1588, 1820, 2148, 2204, 2284, ?
2006-08-02 11:44:34 · 5 answers · asked by wormhead 2 in Science & Mathematics ➔ Mathematics
a. The pattern is 95 - 78x + 38x^2 for x = 0,1,2,...
Next number is 14.
b. The pattern is 73 - (9/2)x - (23/2)x^2 + 4(x^3) for x = 0,1,2,3
Next number is 127
c. The pattern is 1588 +(314/3)x - (1609/3)x^2 + (682/3)x^3 - (83/3) x^4 for x = 0,1,2,3,4,...
Next number is 42,183
Ain't Math Fun?
If this isn't the answer you had in mind, please post it. If you didn't have an answer in mind, and you were trying to fool the masters, let us know, and give me the ten points.
2006-08-02 12:32:16 · answer #1 · answered by Polymath 5 · 2⤊ 0⤋
a. 25, every other number is a square that is 1 number less. 36, .., 25,.., 16 ect.
b. 31 Every other number is a multiple of 8 minus 1, the multiple is 2 factors less than the previous. 73 is 72/8 = 9 and 56/8 = 7; therefore, 8*4 = 32 minus 1 = 31
c. 2588 . Starting with 1820, every other number is 384 more.
2006-08-02 19:06:54 · answer #2 · answered by Anonymous · 0⤊ 1⤋
Wish I could help - these are very difficult. I think bluedoggy needs to show me more terms in the series because I don't follow his reasoning - I'm not saying he's not right - I just don't get them. Did you have any examples worked out in a text? If you had something to follow, site them in details
WOW Sean, you're a genius
Good luck
2006-08-02 19:42:34 · answer #3 · answered by MollyMAM 6 · 0⤊ 0⤋
I think seanchasworth really deserves 10 points!
2006-08-02 19:52:38 · answer #4 · answered by Anonymous · 0⤊ 0⤋
these are tough, i can get any of them.
2006-08-02 19:00:55 · answer #5 · answered by hanumistee 7 · 0⤊ 1⤋