Prove:
for all integers n, if n2 is odd, then n is odd.
use a proof by contraposition, as in lemma 1.1.
let n be an integer. suppose that n is even, i. e., n = for some integer k. then n2 = = 2
is also even.

According to the data set, where should the upper quartile line of the box plot be placed?

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? \ 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x