Although it may seem obvious from the diagram of rectangle ABCD pictured, ADMC is isosceles. Explain why this must be true

Karianne and lucius are analyzing a linear function on a graph. karianne says that unit rate is equal to rate of change, but that slope is calculated differently. lucius says that unit rate, rate of change, and slope are calculated the same way. who is correct? explain your answer.

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll