If AABC = ADEF, AB = 13, BC = 24, AC = 19, EF = 5x – 1, and DE = y - 7, find the values of x and y.
HELP

(a) compute the maclaurin polynomial m2(x) for f(x) = cos x. (b) use the polynomial of part (a) to estimate cos π 12. (c) use a calculator to compute the error made using the estimate from part (b) for the value of cos π 12. remember that the error is defined to be the absolute value of the difference between the true value and the estimate.

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

Which of the following is true for the relation f(x)=2x^2+1