Answer:
Step-by-step explanation:
2×radius with pi, 28*pi=28 pi or 87.92
Answer:
The looks of the Triangles are different.
Step-by-step explanation:
How many minutes did it take him to cover 1 mile? 5 minutes.
Step-by-step explanation:
=
× 
=
=
or 180.45
please give me a brainliest answer
Answer: It is believed that exactly 20% of Evergreen Valley college students attended the opening night midnight showing of the latest harry potter movie.
Step-by-step explanation:
Since we have given that
n = 84
x = 11
So, 
p = 0.20
So, hypothesis:

so, test statistic value would be

At 1% level of significance, critical value would be
z= 2.58
Since 2.58>-1.604
So, We will accept the null hypothesis.
Hence, It is believed that exactly 20% of Evergreen Valley college students attended the opening night midnight showing of the latest harry potter movie.