The circle below is centered at the origin and has a radius of 4. What is its equation?
O A. x² - y2 = 4
O B. x2 + y2 = 4
O C. x2 + y2 = 16
O D. x2 - y2 = 16
Help

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.