What is the area of this rectangle in the coordinate plane

30 square units.

Step-by-step explanation:

WE see that the length of the rectangle = 17 - 7 = 10 (by subtracting the numbers on the vertical scale).

We can just count the squares to get the width - it is 3.

Therefore the area = width * length

= 3 * 10

= 30.

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.

c. 6tan80

step-by-step explanation: