Answer:
radius=2
Step-by-step explanation:
if the circumference=4pi and the formula is 2pir then r must be 2 and would look like this:
C = 2pir
C = 2pi2
C = 2*2pi
C = 4pi
Given:
Total number of problems = 24
Michael completed
of his homework in
of an hour.
To find:
What fraction of his homework would he complete in one hour.
Solution:
We have,
Part of work done in
of an hour 
Part of work done in an hour 

Therefore, he complete
of his homework in 1 hour. Hence, all options are incorrect.
The given equation is:

We have to find, which of the given set of parametric equations given in the options, result in the above equation:
The correct answer would be option A.
The equations in option A are:

From first equation we can see that 5t is equal to x. Using the value of 5th in second equation, we get the equation as:
Therefore, the correct answer is option A
Answer:
the
Step-by-step explanation:
it's fairly easy actually. You just have to use sin
Answer:
16.C
17.20
Step-by-step explanation:
16.Add 8+5=13
17.Add 12+8=20