Common ratio for 4,-16,64,-256

(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.

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?