What are the coordinates of the midpoint of the segment joining points a(6, -3, 7) and b(-4, -5, 3)?

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

On a piece of paper graph f(x)=5•(0.4)^x

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.