If N = 16 × 10^(-p) and −4 < p < 4, how many different integer values of p will make N a perfect square?
Choose the correct choice from the following.
A) 0  B) 2  C) 3  D) 5  E) 7
I think the answer should be C.   Thoose are P-Values that satisfy given restriction: -2, 0, 2 (note, a fraction can be also a perfect square) --&gt; 16*100, 16*1, 16/100
<result>C</result>
If N = 16 × 10^(-p) and −4 < p < 4, how many different integer values of p will make N a perfect square?