consider the arithmetic series: 1 + 9 + 17 + 25 +
write a formula for the sum of the first n terms in this series.
a) 4n^2 - 3n
b) 6n^2 - 7n
c) 8n^2 - 5n
d) 10n^2 - n

What is the distance between point a and b

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5