Factor completely x8 - 81.

(x4 - 9) (x4 + 9)

(x2 - 3) (x2 + 3) (x4 - 9)

(x2 - 3) (x2 + 3) (x4 + 9)

(x2 - 3) (x2 - 3) (x4 - 9)

How many different ways can you cut a rectangular prism into halves?

Suppose that rather than flipping a coin, one rolls a die. if the value is 1, 2, 3, or 4, the player wins $1. if it is 5 or 6, the player loses $1. calculate the expected return.

Hurry as this need to done before 10pm tonight?!! Given that lines a and b are parallel and that m∠5 = 120°, find m∠1. A) 40° B) 60° C) 120° D) 135°

A surveyor wants to know how many shoppers at a mall like to read books. He surveys 100 people coming out of a bookstore at the mall. Why is the sample biased? It is unlikely that people who shop in bookstores are interested in surveys.

cc has 3/4 gallons of chocolate ice cream left from her birthday party. she ate 1/2 of the chocolate ice cream while watching tv. how much ive crea does she have left?

Tony, Martin, and Alfredo play together on a basketball team. During practice one day, they each shot 20 free throws. Tony made 14 out of 20, Alfredo made 3/4 of his shots, and Martin made 60% of his shots.

Leo reads 10 pages in 1/2 hour. What is the unit rate for pages per hour? For hours per page?

How to find the unit rate of 510/2

Johnny Barber took golf lessons. His clubs cost $394, balls cost $12.50, shoes cost $49.50, his golf shirt was $39, and his glove was on sale for $19.95. He paid 5% sales tax on his purchase. His lessons cost $20.00 per lesson for 12 lessons.

Write each sum using summation notation 12 + 22 + 32 + 42 + ⋯ + 10000^2