7
Answer: DSet 3: Exponential Functions (Advanced)
Explanation
PROBLEM
Recent studies show that simplify: 3 to the power of (-1). Express as a fraction 1/n.
Simplify: 3 to the power of (-1). Express as a fraction 1/n.
A.
1/4
B.
1/2
C.
3
D.✓ Correct
1/3
Detailed Explanation
[Variation 1] Choice D is the best answer. 3 to the power of (-1) = 1/3 to the power of 1 = 1/3
Why others are wrong:
A: 1/4 is incorrect because it does not satisfy the equation.
B: 1/2 is incorrect because it does not satisfy the equation.
C: 3 is incorrect because it does not satisfy the equation.