Solution:
As 360°= 2 π Radian
1 Radian =
1. Sin(-1)= Sin (
)
= Sin (-57°16'22")=-0.84147
2.
=
(229°54'32")
=75.963757 Degrees
3. 
= 
(5°43'38")
= 84.26083 Degrees
The answer should be 666 because it’s talking about Luis and Luis backwards is siul which doesn’t make sense at all hope it helps
Answer:
There are 60 girls and 40 boys in the class.
Step-by-step explanation:
Given that the mean weight of 100 students in a certain class is 71kg, while the mean weight of boys is 65kg and that of girls is 75kg, to determine what is the number of boys and girls the following calculation must be performed:
1 x 75 + 0 x 65 + 75
0.9 x 75 + 0.1 x 65 = 74
0.8 x 75 + 0.2 x 65 = 73
0.7 x 75 + 0.3 x 65 = 72
0.6 x 75 + 0.4 x 65 = 71
Thus, there are 60 girls and 40 boys in the class.
Product is multiplying. when you multiply a letter with a number you don't put any symbols so it would be 8c
