1≤x≤3 and 3≤y≤5. The least possible average of 1/x and 1/y is :(A)2/3 (B)3/5 (C)4/15 (D)8/15 (E)4/5

How many zeros does the function f(x)=4x3-x2+1 have

What are the solutions of the equation? 16x^2 + 24x + 5 = 5 a. 1/4, 5/4 b. -1/4, -5/4 c. -1/4, 5/4 d. 1/4 , -5/4

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25