If a and b are any two real numbers, explain how you calculate the difference . be sure to include each of the following in your explanation.
(a) a description of the relationship between addition and subtraction
(b) how you can use a number line to with the calculation
(c) how you can determine the sign of the result

(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 length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?