The n≥30 is the general rule to approximate most populations as normal. If the population is symmetrical and resembles a normal distribution(or is actually normal), an even smaller size could be used.
We are given with the function summation of 16*(5) ^(I-1) from 1 to infinity. As we assume in the calculator that infinity is equal to a very large number, the result that can be obtained is undefined. This means the number is very large. This is because the ratio (15) is large too. The series is divergent since the number in the infinite geometric series is ever increasing. Answer is B.
You can choose any two integers.
Like 1 and 2
The roots of x^{2} 6x-55=0 the answer is going to be
the roots is going to 3[1980/6}
x= 2.09284539