9
Answer: BSet 4: Exponential Functions (Intermediate)
Explanation
PROBLEM
Recent studies show that simplify: 5 to the power of 4 times 5 to the power of 3. Express as 5 to the power of what?
Simplify: 5 to the power of 4 times 5 to the power of 3. Express as 5 to the power of what?
A.
5
B.✓ Correct
7
C.
9
D.
8
Detailed Explanation
[Variation 1] Choice B is the best answer. 5 to the power of 4 times 5 to the power of 3 = 5 to the power of (4+3) = 5 to the power of 7
Why others are wrong:
A: 5 is incorrect because it does not satisfy the equation.
C: 9 is incorrect because it does not satisfy the equation.
D: 8 is incorrect because it does not satisfy the equation.