Question

1. Express number 7908 as a polynomial in base indicated. [2]
Example: 956 Base-10: 9 * 102 +5 * 10+ 6
Base-9:
2. Convert the following numbers to base-10. Show your work.[2]
+
a. 76048 =
b. ABC0 16 =

Answer 1

a. I'm guessing this number is given in base 8, in which case

7604₈ = 7 × 8³ + 6 × 8² + 0 × 8¹ + 4 × 8⁰

b. A, B, and C in base 16 correspond to 10, 11, and 12 in base 10, so

ABC0 = 10 × 16³ + 11 × 16² + 12 × 16¹ + 0 × 16⁰