Use the inverse sine function on a calculator.
arcsin (0.88) = 1.08 radians
2n+5...a couple is two people so you need to multiply the number of couples, n, by 2 to get the total number of dancers. Then add the total number of organizers.
Answer U/25=13
U=13 divided 1/25
U=13 multiply 25
U=325
2 consecutive even integers : x and x + 2
x + x + 2 = 170
2x + 2 = 170
2x = 170 - 2
2x = 168
x = 168/2
x = 84
x + 2 = 84 + 2 = 86
so ur 2 numbers are 84 and 86
If I babysit my little sister, my Mom has to work.
Hope this helps! :D
