Answer:
Step-by-step explanation:
tan47=x/18
x=18tan47
cosCDB=7/x
cosCDB=7/(18tan47)
CDB=arccos(7/(18tan47))
CDB=68.74
Answer:
20
Step-by-step explanation:
20
Endurance is the code word.
Answer:
2x - 6y
Step-by-step explanation:
(5x – 2y) – (3x + 4y)
5x - 2y - (3x + 4y)
Distribute the - sign
5x - 2y - 3x - 4y
Group like terms
(5x - 3x) + (-2y - 4y)
Combine like term
2x - 6y