Answer:
la verdD no c
Step-by-step explanation:
pero tu pon lo q creas nadie es perfecto
Answer:
2
Step-by-step explanation:
If this is supposed to be

Then this can simply be reduced to

by the double angle formula for cosine
Answer:
Diameter = 7
Radius = 3.5
Step-by-step explanation:
Hi! Ace here.
So, the formula to find circumference is dπ or 2rπ
So to find the diameter, you do the circumference/π
To find the radius, you'd do the circumference/2π
Plug-in those numbers and there you go!
Hope this helps, let me know if you have any questions.
I know this was a very vague explanation so I encourage you to ask any questions. Thank you!
The answer is -- A. Exactly one solution