exam Maths Puzzle Numerical Ability

how do you solve the problem:
f(x) =1 - 1 divided by (x+2)squared and the value of x is 0

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exam Other Question

An object is thrown stright up from the top of a 100-foot platform at a velocity of 48 feet per second. The height h(t) of the object (t) seconds after being throwm is given by h(t The management of a company that manufacturers roller skates haas a fixed costs of $300.00 per day and a total costs of $4,300 per day at an output of 100 pairs of skates a day. A