Triangle abc is similar to triangle def. the length of ac is 10cm. the length of bc is 16 cm. the length of df is 8cm. what is the length of ef?

(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.

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)

Rounded to the nearest tenth, what is the value of x