Question
Which of the expressions is not equivalent to 1/25?
A. 5^3×5^-5
B. 5^-1×5^-1
C. 5^-3×5
D. 5^-2×5^4
A. 5^3×5^-5
B. 5^-1×5^-1
C. 5^-3×5
D. 5^-2×5^4
Answers
PsyDAG
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.
1/25 = 5^-2
When multiplying a particular number, you add the exponents.
1/25 = 5^-2
When multiplying a particular number, you add the exponents.
ahmed
50+225
Anonymous
1/25
Anonymous
C) 5^-3 x 5. Is not equivalent to 1/25