A rectangle has a height of 4x and a width of 3x + 1.

area of rectangle= length x width

height 4x and width = 3x+1

area of recatangle=4x(3x+1)

=12x^2+4x

perimeter of recatangle=4x+3x+1+4x+3x+1=14x+1

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.

the answer to your question is minor arc.