Triangle DEF is shown below. In triangle DEF, MZD = 51°, mZE 68', and mZF =61",
Triangle DEF is translated 10 units to the left and 2 units down to create triangle D'EF'.
Il x represents the measure of angle D' and y represents the measure of angle F, what is the value of x+y?
OA
112°
OB 152
OC 130"
120

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −