Pretty sure it’s D but if it is not then I don’t know
Answer:
If it's an addition problem then just add 3 cups
Step-by-step explanation:
There isn't too much context here buddy :p
The answer is his tank can hold 15 gallons i think
Answer:
Use a graphing calc or desmos to help guide you.
Step-by-step explanation:
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).
