PC Math 11 - Midterm Review UNIT 2 EXPONENTS 1. Simplify the following and write answers with positive exponents only. a) 16a3 48a7b b)(-2mn) 2. Find the exact value of the following. a) 325 -3 b) 3. Evaluate the expression for, x=-1, y=2, z=3. (2xy'z)' 4. Convert the following to the indicated base. a) 644 to base 4. 81 b) to base 49 WCLN.ca c)5xy(15x2y) 5. Write each in radical form, then simplify the resulting radical, rationalize all denominators. 3 a) 82 b) x c) 4x2 d) (4x) 6. Write each in exponential form and simplify if possible. 2021-12-13 Page 4 of 19 PC Math 11 - Midterm Review a) 40 WCLN.ca b) 8x5 32y6 7. Evaluate each of the following if possible. Leave answers as exact values. [No decimals] 1 a) (-9)2 c) 24302 e) 0.042 3 b)64 3 d) 162 49 8. Evaluate each of the following if possible. Leave answers as exact values. [No decimals] a) -27 b) 645 13 c)-3121 -3/12/23/18 2021-12-13 Page 5 of 19