Q. Select all the expressions that are equivalent to 5−6×5−3. Multi-select Choices:(A) 5−9(B) 591(C) 518(D) 5−91
Use Exponent Properties: To find the equivalent expressions, we need to use the properties of exponents. When multiplying two powers with the same base, we add the exponents.5−6×5−3=5(−6+−3)
Add Exponents: Now we perform the addition of the exponents. 5(−6+−3)=5−9
Rewrite Negative Exponent: We can rewrite the negative exponent as a reciprocal to find an equivalent expression. 5−9=591
Check Given Options: Now we check the given options to see which ones match our findings.(A) 5−9 is equivalent because it is the result of adding the exponents.(B) 591 is equivalent because it is the reciprocal form of 5−9.(C) 518 is not equivalent because it does not follow the rule of adding exponents for multiplication.(D) 5−91 is not equivalent because it is the reciprocal of the reciprocal of 5−9, which would give us 59, not 5−9.
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