Aplane leaves an airport with an airspeed of 155 mph and a bearing of 60-degree northeast. a 20 mph wind is blowing at a bearing of 40 degrees northeast. find the actual speed at which the plane is traveling and the direction angle of the plane. round to the nearest whole number and degree

a) approximately 174 mph at a direction angle of 58-degree northeast
b )approximately 160 mph at a direction angle of 7-degree northeast
c )approximately 146 mph at a direction angle of 45-degree northeast
d ) approximately 146 mph at a direction angle of 5-degree northeast

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.