Posted by Subhotosh Khan on August 29, 2002 at 07:14:07:
In Reply to: pre-calc problems..urgent please posted by moon on August 28, 2002 at 18:56:55:
: hi..i'm trying to do these problems...i don't know how to go out these because the teacher did not go over them in class. i would appreciate if somebody could help me here or email me. here they are:
: Express the area of a circle as a function of its a) diameter b) circumference. Show all work. Explain how each formula works.
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You know Area of circle:
A = pi * (radius)^2 .........(1)
We needto replace radius by diameter or perimeter. So we need to find relation between those and the radius.
We know:
radius = (diameter)/2 ..........(2)and
radius = (perimeter)/[2*pi] ....(3)
So use (2) and (3) in (1) to replace 'radius' and get your expression.
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This part does not make sense.
What is the question????!!
: p(t)= 19.247+ 1.694t -6< t < -1
: (there's suppose to be line underneath both < )
: 19.305+0.427t+0.033t2 : p(t) represents the average price of a mobile home. : i need a somewhat quick response if anybody can...thanks
: ( suppose to be t squared) 0