Is 4.3838999 a rational or irrational number ? ? why? ?

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?