Answer:
(d) -1.83
Step-by-step explanation:
The explicit expression for the sum is ...
S = (-11/5)×(1 -(-1/5)^10)/(1 -(-1/5)) = -2.2(1 -1.024×10^-7)/1.2
S = -1.8333331456
The sum is approximately -1.83.
_____
<em>Additional comment</em>
For a sum of a sequence with multiplier 'a' and common ratio r, we find ...
__
A calculator or spreadsheet can also find the sum for you.
1. The cube root of 384 can be rewritten as the cube root of (8*48). That can be simplified to 2 cube root of 48. That can be simplified down further to 2 cube root of (6*8), which is 2*2 cube root of 6, or 4 cube root of 6. So, the answer is C.
You do the same thing for each of the problems. If you actually want me to just give you the answers, they are:
1. C
2. D
3. D
If you need work, ask me in my inbox.
9>n-2=11
This is how you write the answar
n>11
That would be the bottom left one....because all of the others are spaced evenly
