3. A radar gun measured the speed of a baseball at 103 miles per hour. If the baseball es ve
actually going 99 miles per hour, what was the percent error in this measurement?

the answer is 62

600,000,000,000, or 6e14

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

b is the correct answer