Find the oth term of the geometric sequence 9, -18, 36, ...

2304

Step-by-step explanation:

Given :-

And we need to find out the 9th term of the sequence. Here firstly we should find the Common Ratio and then we can substitute the respective values in the formula to find the nth term of a geometric sequence .

Common Ratio :-

CR = -18÷ 9 = -2

The 9 th term :-

T_n = arⁿ - ¹

T_9 = 9× (-2) ⁹ - ¹

T_9 = 9 × (-2)⁸

T_9 = 9 × 256

T_9 = 2304

Hence the 10th term is 2304.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.