Does this set of ordered pairs represent a function? Why or why not? {(-5, -5),(-1, -2), (0, -2), (3, 7), (8,9)}
A. Yes, because there are two X-values that are the same.
B. No, because one x-value corresponds to two different y-values.
C. No, because two of the y-values are the same.
D. Yes, because every x-value corresponds to exactly one y-value.

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