You need to put your reindeer, lancer, gloopin, rudy, and bloopin, in a single-file line to pull your sleigh. however, gloopin and rudy are best friends, so you have to put them next to each other, or they won't fly. how many ways can you arrange your reindeer?

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60

answer: it is a.,b.,d.

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92