Zero Power Rule of Exponents Quick Check

Question

3 of 53 of 5 Items
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

70+4⋅9
Start Fraction 7 over 0 End Fraction plus 4 times 9

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

75.30+36

Answer 1

The correct answer is 75.30+36. This is because any number raised to the power of zero is equal to 1, so 7(−5.3)0 becomes 7(−5.3)1, which is equal to 7*(-5.3)*1 = -37.1. Adding 4*9 gives us 36, so the final expression is 75.30+36.