To determine which expression is equivalent to \( 2.2 - 2.5^2 - 2.5 \), we first need to simplify the original expression.
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Calculate \( 2.5^2 \): \[ 2.5^2 = 6.25 \]
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Substitute back into the expression: \[ 2.2 - 6.25 - 2.5 \]
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Now, combine the values:
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First, combine \( -6.25 - 2.5 \): \[ -6.25 - 2.5 = -8.75 \]
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Then combine this with \( 2.2 \): \[ 2.2 - 8.75 = -6.55 \]
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Now we need to evaluate the choices:
A: \( 2.5 - 2.2 \)
This is not equivalent as it simplifies to \( 0.3 \).
B: \( 2.2 + 2.5 \)
This also does not match, as it simplifies to \( 4.7 \).
C: \( 2.2 + (-2.5) \)
This simplifies to \( 2.2 - 2.5 = -0.3 \), which is not equivalent either.
D: \( 2.2 - (-2.5) \)
This simplifies to \( 2.2 + 2.5 = 4.7 \), which does not match.
Now let's reconsider if any simplification has been missed or if an original conclusion is incorrect.
The expression \( 2.2 - 2.5^2 - 2.5 \) accurately leads us to: \[ 2.2 - 6.25 - 2.5 = 2.2 - 8.75 = -6.55 \]
None of the choices (A, B, C, or D) are equivalent to the original expression evaluated to \(-6.55\).
If we consider the evaluations, we find that none of the options provided are the same as the equivalent expression \( 2.2 - 2.5^2 - 2.5 \). Therefore, none of the answers are correct. If the original question expected simplification from one form to another, please clarify or provide further context.