Find the length of the base of the following pyramid, given the height of the pyramid is 91 meters and the angle of elevation of the base of the pyramid is 52°. round to the nearest whole number. an image of a square pyramid is shown with a right triangle embedded inside it. the face is at an incline of 52 degrees. the height is labeled 91 and the corner of the right angle is marked with a letter p. 142 meters 197 meters 231 meters 295 meters

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec