divide. leave the answer in exponent form, assume that all variables in any demoninator are nonzero.?

3 ⤊

(-7)^19/(-7)^17
a)-49
b)1/-49
c)49
d)1/49

2006-10-12 05:14:05 · 2 answers · asked by Chunky 1 in Science & Mathematics ➔ Mathematics

Again, use a^x / a^y = a^(x-y).

You get (-7)^19 / (-7)^17 = (-7)^(19-17) = (-7)^2 = 49, so it's choice c.

2006-10-12 05:16:33 · answer #1 · answered by James L 5 · 2⤊ 0⤋

Sure enough, 49 is the answer I got too. But I had to use windows calculator to figure it out.

2006-10-12 12:25:46 · answer #2 · answered by still_feel_gone83 2 · 1⤊ 0⤋