Question

2^–1.Evaluate. Write your answer as a fraction or whole number without exponents.

Answer 1

1/2 because 2^-1 will give you 0.5 and if you change that into an fraction it will be 1/2

Answer 2

Answer: 1/2

Step-by-step explanation: You just have to know the rules for dealing with negative exponents - you can look these up:

Rule 1: The negative exponent rule states that for a base 'a' with the negative exponent -n, take the reciprocal of the base (which is 1/a) and multiply it by itself n times.

i.e., a(-n) = 1/a × 1/a × ... n times = 1/an

Rule 2: The rule is the same even when there is a negative exponent in the denominator.

i.e., 1/a(-n) = a × a × ... .n times = an