A person's resting heart rate is typically between 60 and 100 beats per minute. Noah looks at his watch, and counts 8 heartbeats in 10 seconds.

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

How can you tell when x and y are not directly proportional?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6