Question

what is the sum of the first five terms of the geometric sequence in which a 1=10 and r=1/2 express the answer as an improper fraction using the slash key

Answer 1

HI!!

Answer 2

five is not such a large number that you can't just add them up

Answer 3

Hey

Answer 4

\[10+5+2.5+1.25+.625\]

Answer 5

or if you really want a fraction
\[10+5+\frac{5}{2}+\frac{5}{4}+\frac{5}{8}\]

Answer 6

Is that the answer or

Answer 7

not too hard since \(10+5=15\) and the common denominator for the last three terms is 8

Answer 8

no dear that is not the answer
that is what you have to add !

Answer 9

Ok

Answer 10

use a calculator if you don't want to do the arithmetic
http://www.wolframalpha.com/input/?i=10%2B5%2B5%2F2%2B5%2F4%2B5%2F8

Answer 11

19 3/8

Answer 12

Is that the answer

Answer 13

yeah as a mixed number

Answer 14

but they want an improper fraction

Answer 15

go with
\[\frac{155}{8}\]

Answer 16

Thanks ur really pretty btw

Answer 17

\[\color\magenta\heartsuit\]