Perform the following operations and prove closure. Show your work.
SHOW WORK
x
x+3
+
x+2
x+5

x+4
x2+5x+6
•
x+3
x2−16

2
x2−9
−
3x
x2−5x+6

x+4
x2−5x+6
÷
x2−16
x+3

Compare and contrast division of integers to division of rational expressions.

What kind of bond pays interest which is exempt from tax?

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

What is the sum of these mixed numbers 4 2/3+ 3 1/9