:) Using the chain rule differentiate the following (show all working) a) y = (6x = 7)* b) y = in(x* = 7) c) y = 10x+1 d) y = 7 sin(4x = 3) e) y = 9 eos x4

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

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