F. The area of a trapezoid is 253 square centimeters. The longer base of the trapezoid is 14 centimeters. The shorter base of the trapezoid is 8 centimeters.
8 centimeters
X centimeters
14 centimeters
What is the height of the trapezoid?

A:13 centimeters

B:11.5 centimeters

C:23 centimeters

D:5.75 centimeters

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