If the cos 30° = square root 3 over 2, then the sin 60° = explain it for me!

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

The table represents a linear function. what is the slope of the function? –6 –4 4 6

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x