There are four activities on the critical path. coincidentally, their standard deviations are all equal to 4. the standard deviation of the critical path is therefore equal to:

(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.

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way