Please Help - Let f(x)=x−1/x+1. (a) Evaluate f^−1(3)=

(b) Evaluate (f^−1)′(3)=
Thank you

What is the value of x when x + 7 = 21?

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

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