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smc

prealgebra senior

Problem

What is the value of

2 - (- 2)^{- 2}

?

(A)

- 2

(B)

\frac{1}{16}

(C)

\frac{7}{4}

(D)

\frac{9}{4}

Solution

2 - (- 2)^{- 2} = 2 - \frac{1}{( - 2 ) ^{2}} = 2 - \frac{1}{4} = \frac{8}{4} - \frac{1}{4} = \frac{7}{4}

Final answer

C