What is the sum of the first six terms of the geometric series?

2 - 6 + 18 - 54 + ...

a) - 486

b) - 364

c) - 40

d) 122

7 1/5 x 4 1/6 = ? this is fractions ...

3. If the expression 1/2x was placed in the form ax^b where a and b are real numbers, then which of the following is equal to a + b? Show how you arrived at your answer. (1) 1 (2) 3/2 (3) 1/2 (4) - 1/2

What is the discriminant of qx^2 + rx + s = 0? a. the absolute value of a+b b. q^2-4rs c. r^2-4qs d. s^2-4qr

What is the unknown variable y-3.5=-2.1

List the intercepts and type (s) of symmetry, if any. y=-x^5:x^2-3

Madonna and Bruce Springsteen had the two top-grossing concert tours for 2012, together generating about $427 million in ticket sales. If Bruce took in $29 million less than Madonna, how much did each tour generate?

How to turn 12 14/15 into a decimal?

In which set are the numbers equal? A) 1 5, 0.20 and 20% B) 1 2, 0.20 and 50% C) 4 5, 0.60 and 60% D) 1 4, 0.20 and 20%

Ramona earns $32,385.60 annually. What is her average biweekly gross pay

Which statement is true? The altitude drawn to the leg of a right triangle forms two triangles that are similar to each other and to the given triangle.