Question

Which of the following is an equivalent expression to 7(−5.3)0+4⋅9
when applying the Zero Power Rule? (1 point)
Responses

75.30+36
Start Fraction 7 over 5.3 superscript 0 baseline End Fraction plus 36

71+4⋅9
Start Fraction 7 over 1 End Fraction plus 4 times 9

75.3+4⋅9
Start Fraction 7 over 5.3 End Fraction plus 4 times 9

70+4⋅9

Answer 1

(−5.3)^0 = 1, so the expression becomes 7·1 + 4·9. Evaluating gives 7 + 36 = 43.

Thus the equivalent expression is 7·1 + 4·9 (which equals 43).