Find the angle between the vectors. (first find an exact expression and then approximate to the nearest degree.) a = 5, - 1, 7, b = - 2, 4, 3

Six Flags Amusement Park has found that 3/5 of its customers ride the Colossus roller coaster. Of these, 1/4 ride it again. What fraction of the customers ride the roller coaster twice? a 4/9 b 3/20 c 4/20 d 3-1/4

What is2+2x45+6-7 i cant figure it out

All I really need is a formula on how to solve the question and a explanation on how its solved. 8 x + 13 y = 2 y = x - 2 Solve the system of equations

If a rectangle measures 15 inches by 1 3/4 feet, what is the perimeter in yards? What is the area in square feet? Rounded to the nearest tenth

There was 2/3 of a pizza for 6 friends to share equally. What fraction of the pizza did each person get?

How do you prove a rectangle in geometry?

Solve for the roots in the following equation. Hint: Factor both quadratic expressions. (x4 + 5x2-36) (2x2 + 9x-5) = 0 x=

Find the least common denominator of the following pair of fractions: 7/8 1/2 a. 16 b. 8 c. 24 d. 2 can someone explain?

An earthquake produces 10 waves in 6 seconds. What is the period of the wave in seconds?

Suppose. Shobo knows that I've got 45 people with ages of 18 to 29 voted without even Calculator he quickly said then 135 people with ages of 30 1949 voted is he caressed