Four hundred thousand two hundred five
This problem is an example of an arithmetic series.
The common difference of the second term (15) with the first term (9) and the third term (21) with the second term (15) [15-9=6; 21-15=6] is 6.
The formula for solving this is:
An= A1 +(n-1)*d where An is the nth term, A1 is the first term, n is the number of terms and d is the common difference.
An=9+ (31-1)*6 = 189
The answer is 189.
A) 24
B) 45
(Hope I could help)
Answer:
|x| always equals a positive number so the number in between the absolute value can be a positive number or a negative number. So the answer is -2 or 2.
Step-by-step explanation:
Lhs= (c/s)^2 + 1/s^2 = (c^2 + 1)/s^2 = (2 - s^2)/s^2
rhs = (2/s^2) - 1 = (2 - s^2)/s^2 = lhs
