Mathematics: The cost of the circular carpet, $C, varies as the square of the radius, r metres. If C = 200 when r= 2 Find the cost of the circular carpet when r= 3

The cost of the circular carpet, $C, varies as the

hfleysher

20.04.2021

$450

Step-by-step explanation:

C = k $r^{2}$

200 = k( $2^{2}$ ) = 4k

k = 50

C = 50 $r^{2}$ = 50( $3^{2}$ ) = 50(9) = $450

0,0(0 оценок)

mdaniella522

17.09.2021

There u go this is what the internet says
What does it mean for a line to be reflected in the line y=2?

0,0(0 оценок)