Answer:
did not understand ur q.a
answer is c because if it's not a and b then the only answers will be c and d and d is the same as the number so it's c
Answer:
See below
Step-by-step explanation:
a = 15 sqrt 2 sin 45
= 15 sqrt 2 * sqrt( 2 ) /2 = 15 * 2 /2 = 15
sin 60 = a/c
sqrt(3)/2 = 15/c
c = 15 / ( sqrt(3)/2) = 30 / sqrt 3 = 30 sqrt 3 /3 = 10 sqrt 3
2x+y=8 is the equation perpendicular to x-2y=8.
