Which is the best estimate for the percent of 7/15?

21%

22%

46%

47%

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

F(x) = x2 − 9, and g(x) = x − 3 f(x) = x2 − 4x + 3, and g(x) = x − 3 f(x) = x2 + 4x − 5, and g(x) = x − 1 f(x) = x2 − 16, and g(x) = x − 4 h(x) = x + 5 arrowright h(x) = x + 3 arrowright h(x) = x + 4 arrowright h(x) = x − 1 arrowright

How can you tell when x and y are not directly proportional?