Solve the right triangle. If two sides are given, give angles in degrees and minules.
B = 68°35', b = 8 km
Round side lengths to one decimal place.
A = 21°25'; c = 8.6 km; a = 3.1 km
A = 21°25'; C = 21.9 km; a = 3.1 km
A = 21°25'; c = 21.9 km; a = 8.6 km
A = 21°25'; C = 8.6 km; a = 21.7 km

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Divide. write in the simplest form. 4 1/6 divided by 10

Acircle has a circumference of 7.850 units. what is its radius?