Hello, I was going to make an apology to the moderators. I lost my other account to y'all and i really wanted to flip on y'all. But thanks for all you do to make educational and fun:)

(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.

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?