Select all the correct answers. If the measure of angle 8 is, which statements are true?
sin(e) =
The measure of the reference angle is 60°.
The measure of the reference angle is 45°
tan(8) = 1
o cos(O) =
The measure of the reference angle is 30°.

After reading 80% of her e-mails in her inbox, danette still has m unread e-mails. which of the following expressions could represent the number of e-mails danette had in her inbox before she started reading? choose 2 answers: (choice a) 5m (choice b) 1.8m (choice c) 80m (choice d) m/0.8 (choice e) m/1−0.8