Which statement is true? ( I-ready Level E) A. All parallelograms are rhombuses
B. All parallelograms are quadrilaterals
C. All parallelograms are squares
D. All parallelograms are rectangles

B. All parallelograms are quadrilaterals

Step-by-step explanation:

A. Some parallelograms are rhombuses

B. All parallelograms are quadrilaterals

C. Some parallelograms are squares

D. Some parallelograms are rectangles

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.