Answer:
17
Step-by-step explanation:
3(4)+5
12+5
17
Answer:
6 squareoot 6
Step-by-step explanation:
Essentially this is asking you to sum the first three values of the geometric series that starts with i being 1 and has the rule of (
).
Since we must sum the first <em>three </em>geometric values we need to see what the value of i will be for the first three. The sigma notation shows us that the first i will be equal to 1. This means the second i is 2 and the third i is 3.
Knowing this you can plug in the corresponding i values into (
) and sum it all together
(
) + (
) + (
)
(
) + (
) + (
)
(
) + (
) + (
)
(8) + (2) + (
)
10 + ![\frac{1}{2})](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%29)
10.5
Hope this helped!
~Just a girl in love with Shawn Mendes