exam Maths Puzzle Numerical Ability

Find the domain and range for the function. Use interval notation.

f(x)= (x^2 + x - 12)/(x-3)

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exam Other Question

Four letters and envelopes are addressed to four different people. If the letters are randomly inserted into the envelopes, what is the probability that(a) exactly one is inserted and (b) at least one is inserted in the correct envelope Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph. 5x - y = 4