Consider the sets below. u {x|x is any color} a {x|x is a color of the rainbow} r {x|x is red, yellow, or blue} is r ⊂ a? a. yes, because all the elements of set a are in set r b. yes, because all the elements of set r are in set a c. no, because each element in set a is not represented in set r d. no, because each element in set r is not represented in set a

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