Answer:
A. 8.09 × 10^-5
Step-by-step explanation:
4.1 x 10^-6 = 0.0000041
0.000085 - 0.0000041 = 0.0000809
0.0000809 = 8.09 x 10^-5
Answer:
the first one
the first one Step-by-step explanation:
the first one Step-by-step explanation:from the formula Un =ar^n-1
where a is 2
where a is 2 r = 20/2=10
where a is 2 r = 20/2=10 so Un= 10×2^n-1
that's all.....have fun
It equals 96. hope that helped
