If ∆ABC congruent ∆DEF, which of the following can you NOT conclude as being true? A. AC congruent DF
B. ‹B congruent ‹E
C. AB congruent EF
D. ‹C congruent ‹F

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.