Arock climber's elevation above sea level changed −8212 feet in 2 1/4 minutes as she descended. what was the climber's average change in elevation per minute? enter your answer as a mixed number, in simplified form, in the box.

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

Determine which postulate or theorem can be used to prove that lmn =nmo

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4