Write the standard equation of the circle in the graph. A. (x − 4)2 + (y + 3)2 = 16
B. (x + 4)2 + (y − 3)2 = 16
C. (x − 4)2 + (y + 3)2 = 4
D. (x + 4)2 + (y − 3)2 = 4

in 4 days he will run   12/14

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