Question

If 100 < a < 10000, and x = a × 10^n, determine va in standard form. Give your answer in terms of a and n.

a) 10a × 10^n
b) 100a × 10^n
c) a × 10^(n+1)
d) a × 10^(n-1)

Answer 1

The expression x = a × 10^n represents a number in scientific notation, and va can be written as a × 10^n. The correct answer is c) a × 10^(n+1).

Step-by-step explanation:

The expression x = a × 10^n represents a number in scientific notation, where 'a' is the coefficient and 'n' is the exponent of 10. Since va is the number represented by x in standard form, it can be written as a × 10^n.

Therefore, the correct answer is c) a × 10^(n+1).