(1.2 x 105)2 + (3.11 x 1010) = 3393.1
Answer:
s=-4.1
Step-by-step explanation:
you just need to divide by -5 of each item
so we have -5s/-5=21.5/-5
s=-4.1
<u>Answer:</u>
The correct answer option is B.
.
<u>Step-by-step explanation:</u>
The following is the formula that is used to find the sum of a geometric progession:
![S _ n = a _ 1 [ \frac { 1 - r ^ n } { 1 - r } ]](https://tex.z-dn.net/?f=%20S%20_%20n%20%3D%20a%20_%201%20%5B%20%5Cfrac%20%7B%201%20-%20r%20%5E%20n%20%7D%20%7B%201%20-%20r%20%7D%20%5D%20)
where
is the sum,
is the first term,
is the common ratio while
is the number of terms.
Answer:
1. x= -4
2. x= 7
Step-by-step explanation:
hope this helps :)