Answer:
cosa = 3/5
Step-by-step explanation:
Use Trignometrical identity cosa = √
1
−
sin
^2a
cos a = √
1
−
16
/25 = √
9
/25 = 3
/5
Answer:
Step-by-step explanation:
when you lay down and close your eyes
Answer:
3/2 or 1.5
Step-by-step explanation:
Answer:
x = 9.3
Step-by-step explanation:
tan 25° = x/20
0.4663 = x/20
x = 9.3
Answer:253.33...
Step-by-step explanation: