1) what angle pheta is measured by a 7inch arc on a circle of radius=3
2) if the 8inch radius tires on a car are rotating at 600revs per minute, how fast is car going mph ?
3) assume the earth orbits the sun once per year (365 days), in a circular way with sun at the center, also earth is 93,000,000 miles from the sun. what is the linear speed of the earth in miles per hour??
4) in right triangle, an acute angle and its adjacent side measure 40degrees and 15 feet respectively. draw a diagram to detemrine the measures of the other side, hypotenuse, and other acute angle.
5) if a mechanical horse is moving around a circlular track with radius 200 yards at 20mph, how many revolutions per day does the horse make?
Thanks in advance