Vincent is going to frame a rectangular picture with the dimensions shown :-
Length (L) = 5x+7y
Width (W) = 4x-2y
We know the formula of perimeter of rectangle is given by :-
Perimeter = 2·(length + width)
P = 2·(L+W) = 2L + 2W
P = 2·(5x+7y) + 2·(4x-2y)
P = 10x + 14y + 8x - 4y
P = 10x + 8x + 14y - 4y
P = 18x + 10y
So final answer is P = 18x + 10y.
C=2pi r
C = 2 pi 7
C= 14 pi
C= 43.96 in
First, fint the roots of the equation
1.

2. You can see that this equation has two different real roots. Note that you can make this statement without finding roots, only knowing the value of discriminant: since D=81>0, then the equation has two different real roots.
Answer:
1/4
Step-by-step explanation: