Answer:
22.2
Step-by-step explanation:
The missing side is x
- cos19° = 21/x switch x and cos19°
- x = 21/cos 19°
x = 22.21≈ 22.2
Answer:
B
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
It not a continues number like 1.33333... therefore it is rational. If it went on forever it would be concidered irrational.
Answer:
23/14
Step-by-step explanation:
42x - 5 = 64
Add 5 to both sides in order to isolate 42x
42x = 64 + 5
42x = 69
Divide 42 from both sides in order to isolate x
x = 69/42
The answer gives an uneven decimal so it'd be best to leave it as a simplified fraction. The simplified fraction is 23/14.