Answer:
Step-by-step explanation:
The given sequence is 0.3, - 0.06, 0.012, - 0.0024, 0.00048 ........ so on.
Now, this is a G.P. sequence with common ratio .
Now, the explicit formula of the given series will be
, where is the nth term of the G.P. sequence.
Now, for n = 1, .
For, n = 2, and so on. (Answer)
1. she needs to cover 73.5square ft.
2.about 2 bottles of paint
assuming b is the underscript of log, the formula is log _b_3=-8.
the formula for log is usually log_b_x=n, and to convert it to exponential would be the same as b^n=x
just fill in the numbers, b is still b, and -8 will be the in place of n, equal to 3.
b^-8=3