Given: angle, A, C, E, \cong, angle, A, C, F, comma∠ACE≅∠ACF, angle, E, C, B, \cong, angle, F, C, D∠ECB≅∠FCD and start overline, B, C, end overline, \cong, start overline, D, C, end overline, .
BC ≅
DC .
Prove: start overline, A, B, end overline, \cong, start overline, A, D, end overline
AB ≅
AD .

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.