Which of the following is the explicit rule for a geometric sequence defined by
a recursive formula of a = -9a-1 for which the first term is 300?
O
A. 300.(-930-1
O
B. 300.(-9)+1
O
c. -9.300*+1
D. -9.3007-1

A

Step-by-step explanation:

The last two are wrong as you put the value it is being multiplied by between each term, -9, with the exponent, not the initial term. It is A as n-1 indicates the nth term not including the first term. n+1 makes no sense in this context

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.