The picture shows a circle divided into 8 equal wedges which are rearranged.
The radius of a circle is r and its circumference is 2πr. How does the picture help to explain why the area of the circle is πr²?

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 – x + 2 q(x) = (x3 + 2x2 + 3)(x2 – 2) determine the operation that results in the simplified expression below. 35 + x4 – 573 - 3x2 + x - 8 a. p+q b. pq c.q-p d. p-q