Given: wx||yz ; xy||wz prove: wxz cong. yzw

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?