For the winter, a duck flies 10.0 m/s due south against a gust of wind with a speed of 2.5 m/s. what is the resultant velocity of the duck?
a. 12.5 m/s south
c. 7.5 m/s south
b. 12.5 m/s south
d. 7.5 m/s south

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

With finding limits of multi variable !

Usan threw a softball 42 yards on her first try and 5112 yards on her second try. how much farther did she throw the softball on her second try than her first? express your answer in feet and inches. 9 ft 12 in. 28 ft 12 in. 28 ft 6 in.