This circle is centered at the origin, and the length of its radius is 10. What is the circle's equation?
10
5
5
A. x10 + y10 = 100
B. X+ y = 10
O C. x2 + y2 = 10
O D. x2 + y2 = 100

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2