63/84 divided by 21/21
=3/4
or
63 divided by 84=0.75 which is the same thing as 3/4
Answer:
it is b
Step-by-step explanation:
took the test
Answer:
Step-by-step explanation:
for dot plot A, the mean is 90 to the medium becuase it has the most dots out of them all.
Answer:
The width of the window should be
and the height of the window should be 
Step-by-step explanation:
we know that
The circumference of a semicircle (window) is equal to

we have that


substitute and solve for r


so
the width of the window is equal to the diameter of the semicircle
so
The width of the window should be
and the height of the window should be 
Use these equations when converting polar equations to parametric equations:


We know that
, so substitute that into both equations for x and y.


Now, replace
with any variable that you want to represent the parametric equations in. I'll use the standard variable, 


Thus,
represented in parametric form is:

Let me know if you need any clarifications, thanks!
~ Padoru