Given: Line AM is congruent to line MC, Line AE is congruent to DC. M angle BDA is congruent to m angle FEC. Prove: Line AB is congruent to line FC.

Drag each scenario to show whether the final result will be greater than the original value, less than the original value, or the same as the original value. 1. a 25% decrease followed by a 50% increase 2. a 20% decrease followed by a 25% increase

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.