(2.5 x 10^-8)(9 x 10^-10) = (2.5 x 9) x (10^(-8 + (-10))) = 22.5 x
10^(-8 - 10) = 2.25 x 10^1 x 10^-18 = 2.25 x 10^(1 + (-18)) = 2.25 x
10^(1 - 18) = 2.25 x 10^-17
Answer:
40 miles
Step-by-step explanation:
At this rate, it travels 80 miles per 2 hours, or 40 miles per 1 hour.
The train's travels 40 miles per hour.
Answer:
15/2 I think
Step-by-step explanation:
Answer:
rationalising factor wud be
2 - root3
as on multiying both and applying identity we end up
2^2 - (root3)^2
4 - 3 = 1
we got a rational number so rationalisng factor is
2 - root3
The answer to this question is -11/6
