Your friend says that the volume of a sphere with radius r is four times the volume of a cone with radius r. when is this true? justify your answer.

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)