Someone help me please

Find the measure of 0 (to the nearest tenth)

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

probability for j is 1/4

while

a is 1/6

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