Find the sum of a finite arithmetic sequence from n = 1 to n = 15, using the expression 2n + 5

10% of 1,900,000. show me how you got the answer

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =

Change negative exponents to positive. then solve. round to four decimal places