Answer:
9/10 is 90%
Step-by-step explanation:
You just make it a percentage
Answer:
Step-by-step explanation:
Option c would be correct
Answer:
cos(400)
Step-by-step explanation:
Useful things:
Cofunction identity: sin(x)=cos(90-x)
Sine and cosine have period of 360 degrees.
So sin(50)=cos(40) by cofunction identity.
Since cosine has period of 360 degrees then cos(40)=cos(360+40).
That simplifies to cos(400).
3x² + 8x - 3 = (3x - 1) (x + 3)
