Question

simplify
1. b8/b1
2. (3.8x10^5)divided by (1.9x10^-2)
3.(4.5x10^6)divided by (1.6x10^3)
4. 4^9/4^6
i really need help on this

Answer 1

note that when dividing similiar basis - subtract powers or exponents

so for
b^8 / b^1
8-1= 7
answer is b^7

Answer 2

thank you

Answer 3

so what did you get for the 2nd one?

Answer 4

i dont know how to do it can you explain ? for number 4 i got 4^4

Answer 5

actually 9-6 is 3

so you should have gotton 4^3

Answer 6

for the 2nd one:
3.8 / 1.9 = (use calc if you can not see this as 2)
5 - (-2) = 5 + 2 = 7
answer is
2 x 10^7

you follow?

ok you try #3