Consider kite abcd. kite a b c d is shown. sides a d and d c are congruent. the length of side a b is 4 x minus 3 and the length of side b c is 2 x + 7. angle b is 79 degrees, angle c is (5 y) degrees, and angle d is 61 degrees. what are the values of x and y? x = 2, y = 22 x = 2, y = 44 x = 5, y = 22 x = 5, y = 44

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.