Answer:
19. A
20. A
Step-by-step explanation:
19. tan(53)=15/x
x(tan(53))=15
x=15/(tan53))
x=11.3 feet
20. tan(60)=12/x
x(tan(60))=12
x=12/(tan(60))
x=6.93, or 4sqrt3
Answer: 9
bring the like terms together,
0
20char20char20char20char
4+ x/7 = 2
x/7=2 -4
x = 7(2-4)
x= -14