Answer:
18.84ft
Step-by-step explanation:
if r= 3 then d=6
therefore C=3.14×6
=18.84ft
6x^3 -24x^2 24x
3x^2 -12x 12
Answer:
The dimensions of the screen are
Length:102 feet
Width: 82 feet
Step-by-step explanation:
we know that
The area of the rectangle (movie screen) is equal to

where
L is the length
W is the width
we have

so
----> equation A
The screen is 20 feet longer than it is wide.
so
---> equation B
substitute equation B in equation A

solve for W

solve the quadratic equation by graphing
the solution is W=82 ft
see the attached figure
Find the value of L

therefore
The dimensions of the screen are
Length:102 feet
Width: 82 feet
Answer:
the first one and the third one
Step-by-step explanation: