Answer: A- Selena is incorrect because she should have substituted the values for the variables first, and then simplifed
i just took the test. i know that drake is correct because his finale answer was -1/2 and Selenas finale answer was 1/2 if she would have substituted her vaules before simplifying she would have gotten the answer 1/-2 instead of -1/-2 which resulted in her finale answer to be 1/2
I am not sure on this one but I think it may be like 6 years. I will try to find a better answer ... I have not seen any question like this one ... I tryed to answer it on a sheet of paper but I cant seem to get it ... I am so sorry if I cant help ... <3
Area=pi r squared
area=3.14 x 10squared
area= 314
the answer is 314
Remember that radius is half of the diameter (1/2 d)
10 * 2 = 20
20 is the diameter.
c
--- = 3.14 Get 'c' by itself by multiplying 20 to both sides
20
This eliminates the '20' in c/20
c = 3.14 (20)
Multiply.
c = 62.8
Your circumference is 62.8
Answer:

Step-by-step explanation:

Hope this helps ;) ❤❤❤