The simplification of the expression will be as follows: (a^7b^8)/(a^4b^4) According to the rules of indices, when you divide numbers with the same base, it's the same as subtracting their powers. Hence we shall have: (a^7b^8)/(a^4b^4) =(a^(7-4))(b^(8-4)) =a^3b^4 the answer is a^3b^4
Vol (pyr) = 1/3 b × h, where h = 15 and b = base = area of triangular base = 1/2 b×h, where h = 12 and b = 13 V = 1/3 (1/2×12×13)×15 V = (1/3×1/2×12)×13×15 V = 2×13×15 = 30×13 = 390 in^3
