Select the right answer. the diagonals of a rectangle are equal. always sometimes never

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

Which statements are true? see picture

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?