So x equals two if it is an exponent.9
It would be 2/10, or 1/5, since two out of the 10 numbers are even. 2/10 simplifies to 1/5, since there is 1 for every 5 numbers.
We could turn this into a percentage by dividing 1 by 5, which gives us 0.2. Then we can multiply by 100 to get 20.
So, our probability of choosing an even number is:
2/10
OR
1/5
OR
20%
Hope I could help!
Answer:
a, also there is a calculator on google for this, if you have any more!
Step-by-step explanation:
Answer:
The sum of first five term of GP is 19607.
Step-by-step explanation:
We are given the following in the question:
A geometric progression with 7 as the first term and 7 as the common ration.
![a, ar, ar^2,...\\a = 7\\r = 7](https://tex.z-dn.net/?f=a%2C%20ar%2C%20ar%5E2%2C...%5C%5Ca%20%20%3D%207%5C%5Cr%20%3D%207)
![7, 7^2, 7^3, 7^4...](https://tex.z-dn.net/?f=7%2C%207%5E2%2C%207%5E3%2C%207%5E4...)
Sum of n terms in a geometric progression:
![S_n = \displaystyle\frac{a(r^n - 1)}{(r-1)}](https://tex.z-dn.net/?f=S_n%20%3D%20%5Cdisplaystyle%5Cfrac%7Ba%28r%5En%20-%201%29%7D%7B%28r-1%29%7D)
For sum of five terms, we put n= 5, a = 7, r = 7
![S_5 = \displaystyle\frac{7(7^5 - 1)}{(7-1)}\\\\S_5 = 19607](https://tex.z-dn.net/?f=S_5%20%3D%20%5Cdisplaystyle%5Cfrac%7B7%287%5E5%20-%201%29%7D%7B%287-1%29%7D%5C%5C%5C%5CS_5%20%3D%2019607)
The sum of first five term of GP is 19607.
Verification:
![2801\times 7 = 19607](https://tex.z-dn.net/?f=2801%5Ctimes%207%20%3D%2019607)
Thus, the sum is equal to product of 2801 and 7.