On n - {1}, the relation r given by a r b iff the prime factorizations of a and b have the same number of 2's. for example, 48 r 80 because 48 = 24 · 3 and 80 = 24 · 5. name three elements in each of these classes: 7, 10, 72.

What is 32,005,008 in two forms?

Two numbers are reciprocals if their product is equal to 1. If x and y are reciprocals and x > 1, then y must be?

What is the whole number equivalent of 8/2

The temperature rose 4 degrees each hour for 3 hours. what is the total change in temperature

In an AP the seventh term is 38 and the twelfth term is 63. What is the sum of the first twenty terms?

Multiply and simplify: 10x (9x^2 + 6x + 7)

B ∩ U A = U (B ∩ A).

Kylee bought a pack of 12 cookies. one-third if the cookies are peanut butter. How many of the cookies in the pack are peanut butter?

How do you know the opposite of a nonzero integer?

The mileages of cars in a fleet of cars are normally distributed with a mean mileage of 52,000 miles and a standard deviation of 2,000 miles. What is the probability of randomly selecting a car with a mileage less than 52,000 miles?