What is the value of x in the equation 4/7(21/8x+1/2)=-2(1/7-5/28x)? Write your solution in decimal form

(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.

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?