Calculating Unknown Lengths of Right Triangles
The measure of angle A is 15°, and the length of side
BC is 8. What are the lengths of the other two sides,
rounded to the nearest tenth?
AC =
AB =

Need this asap if anyone can i would be very grateful. if you could show workings that would really

Standard deviation of 19,29,21,22,23

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?