A person can burn approximately 210 calories while in-line skating for 30 minutes. How many calories can a person burn in 2 hours?

Describe the relationship between the angles of similar triangles and the sides of similar triangles

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.

Identify the number as a regional or irrational.explain. 291.87