Answer:
4/5
Step-by-step explanation:
5cosA=4
divide both sides by 5
cosA=4/5
Answer:
19
Step-by-step explanation:
3(7)-2
21-2=19
this explanation needs to be more than 20 characters so that's why I'm typing this sentence
Answer:
The modes are 9 and 11
Step-by-step explanation:
perpendicular to the given plane and passes through (6, 2, 7).
Answer:I have the same thing
Step-by-step explanation: