A student uses a calculator to find an answer but instead of pressing the \boxed{x^2} key presses the \boxed{\sqrt x} key by mistake. The student’s answer was 9. What should the answer have been?
Answer Choices
A. 243
B. 81
C. 729
D. 3
E. 6561
A student uses a calculator to find an answer but instead of pressing the \boxed{x^2} key presses the \boxed{\sqrt x} key by mistake. The student’s answer was 9. What should the answer have been?
Answer Choices
A. 243
B. 81
C. 729
D. 3
E. 6561