Find the perimeter of the polygon if angle B is congruent to angle D. 6.5 cm 7.5 cm 8.5 cm

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

The area of square garden is 300m squared. how long is the diagonal?