这两道题的答案和自己做出来的答案不一样,请大家帮帮忙,谢谢 Q7: On an aerial photograph, the surface of a pond appears as circular region of radius inch. If a distance of 1 inch on the photograph corresponds to an actual distance of 2 miles, which of the following is the closest estimate of the actual surface area of the pond, in square miles?
A. 1.3 B. 2.4 C. 3.0 D. 3.8 E. 5.0 Q12: What is the cube root of w ? (1) The 5th root of w is 64. (2) The 15th root of w is 4. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONE is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient. |