List two pairs of adjacent angles.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

The measure of an angle is 117°. what is the measure of a supplementary angle?

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?