<span>sin 90° = 1
</span>
cos 0° = 1
There's a simple formula : <em>sin θ = cos (90°- θ)</em> or <em>cos θ = sin (90°- θ) </em>
So : cos 0° = sin (90° - 0°) = sin 90° = 1
Answer:
6 hours of flight time I believe
Step-by-step explanation:
First replace y with 15.
1/5x-10=30
Then just solve from there.
x=200
It's very simple just divide 21.75 by five and that's your answer did you want me to do it?
The correct answer for this would be -10