Answer:
b
Step-by-step explanation:
Using the trigonometric identity
• sin²x + cos²x = 1 , hence
cosx = ± 
cosΦ > 0 for 0 < Φ < 
cosΦ =
=
=
=
→ b
Answer:
5 liked chocolate, 5 liked vanilla and 10 liked strawberry.
Step-by-step explanation:
22 kids are in the class and 2 kids are lactose intolerant meaning they don't eat ice cream. so take away 2 from 22 leaving 20 kids. so 20 kids eat ice cream. first u must find what is 1/4 of 20. so u divide 20 by 4 which equals to 5. so 1/4 of 20 is 5. so 10 is 1/2.
Answer:
x=6.18
Step-by-step explanation:

25 will go into 33 once, with a remainder of eight.