A race-car is driving counter-clockwise on a circular track with a radius of 1.9 miles. The car starts at the 3 o'clock position and travels at a constant speed of 85.5 miles per hour. What distance (in miles) has the race-car traveled if the car has swept out an angle of 212 degrees?
 miles   

What is the measure of the angle swept out by the car (in radians) if the car has traveled 4.9 miles?
 radians   

Define a function, h, that gives the race-car's distance above the horizontal diameter of the track (in miles) in terms of the number of hours since the race-car started driving, t.

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The answer is below

Step-by-step explanation:

The car is moving in a circular track with a radius of 1.9 miles. The distance covered by the car if the track is revolved once = 2π * radius of the track.

a) Since the car has swept out an angle of 212 degrees, the distance covered by the race car =

b) If the car traveled 4.9 miles, the angle swept out (θ) is:

c) h = distance covered, t = time in hourss.

Hence:

h = 85.5t

d. vertex

step-by-step explanation:

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.