Let's evaluate the expressions in each of the provided options step by step to determine which shows the correct process for solving \( -3^0 + 4.5 \).
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Option 1:
\(-30 + 4.5 = -3 + 4.5 = 1.5\)
- This is incorrect because \(-30 + 4.5\) does not equal \(-3\).
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Option 2:
\(-30 + 4.5 = (-3)^0 + 4.5 = 1 + 4.5 = 5.5\)
- Evaluating \((-3)^0\) gives 1, so this part is correct, but \(-30 + 4.5\) does not equal \((-3)^0\).
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Option 3:
\(-30 + 4.5 = -1 \cdot 30 + 4.5 = -1 \cdot 1 + 4.5 = -1 + 4.5 = 3.5\)
- This option is incorrect. The calculations do not follow the original problem.
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Option 4:
\(-30 + 4.5 = -3 \cdot 0 + 4.5 = 0 + 4.5 = 4.5 \)
- This option is incorrect as \(-3 \cdot 0\) equals 0 but doesn’t represent \(-3^0\).
We need to clarify that the expression \(-3^0\) (if interpreted without parentheses) generally evaluates as \(-(3^0)\):
- \( 3^0 = 1\) thus, \(-3^0 = -1\).
Based on this reasoning, the evaluation is:
\[ -3^0 + 4.5 = -1 + 4.5 = 3.5. \]
None of the provided options present the correct solving process using the original expression, \( -3^0 + 4.5 \). But option 3 correctly results in \(3.5\), aligning with our computation despite the misleading notation. Thus, the best option from the given responses is option 3.