Which of the following is an equivalent expression to 7(−5.3)0+4⋅9 when applying the Zero Power Rule? (1 point)Responses71+4⋅9Start Fraction 7 over 1 End Fraction plus 4 times 975.3+4⋅9Start Fraction 7 over 5.3 End Fraction plus 4 times 975.30+36Start Fraction 7 over 5.3 superscript 0 baseline End Fraction plus 3670+4⋅9

1 answer

To simplify the expression \( 7(-5.3)^0 + 4 \cdot 9 \) using the Zero Power Rule, we need to remember that any non-zero number raised to the power of 0 equals 1. Therefore, we have:

\[ (-5.3)^0 = 1 \]

Now we can substitute this back into the expression:

\[ 7 \cdot 1 + 4 \cdot 9 \]

This simplifies to:

\[ 7 + 4 \cdot 9 \]

Now calculating \( 4 \cdot 9 \):

\[ 4 \cdot 9 = 36 \]

Thus, our expression is now:

\[ 7 + 36 \]

Finally, simplifying this gives:

\[ 43 \]

Now looking at the provided options, the one that matches our finding is:

\[ 7 \cdot 1 + 4 \cdot 9 \]

So the answer is:

\[ 71 + 4 \cdot 9 \]

Indicating that the correct option is indeed \( \text{71 + }4 \cdot 9 \).