Given f(x) = 5x2 - 4 and g(x)= 5 - 3x2, find the following expressions.
(a) (fog)(4)
(b) (gof)(2) (c) (f of)(1)
(d) (gog)(0)
(a) (fog)(4) =
(Simplify your answer.)
(b) (gof)(2) =
(Simplify your answer.)
(c) (fof)(1) = (Simplify your answer.)
(d) (gog)0) = (Simplify your answer.)

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25