Question

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

75.3+4⋅9
7
5.3
+
4
⋅
9

Start Fraction 7 over 5.3 End Fraction plus 4 times 9

70+4⋅9
7
0
+
4
⋅
9

Start Fraction 7 over 0 End Fraction plus 4 times 9

71+4⋅9
7
1
+
4
⋅
9

Start Fraction 7 over 1 End Fraction plus 4 times 9

75.30+36

Answer 1

Use the zero-power rule: (−5.3)^0 = 1. So the expression becomes 7·1 + 4·9 = 7 + 36 = 43.

(Equivalent choice: 7·1 + 4·9.)