It is 12 - 2/3 = 18, then solve :)
hope that helps :D
Answer:
24*0.5=12
Step-by-step explanation:because when ever you multiply by a decimal you take that percent away from the original amount--- .5=50%, so you take away 50% of 24 and you get 12
Recall that sin(π/2) = 1, and cos(π/2) = 0,

Answer:
Step-by-step explanation:
tanx=12/18
x=arctan(12/18)
tan(90-x)=12/(a+5)
tan(90-arctan(12/18)=12/(a+5)
a+5=12/tan(90-arctan(12/18))
a=12/tan(90-arctan(12/18))-5
a=3