Question

Which expression is equivalent to
?
A
2.5−2.22.5-2.22.5−2.2
B
2.2+2.52.2+2.52.2+2.5
C
2.2+(−2.5)2.2+\left({}^{-}{2}{}.5\right)2.2+(
−
2.5)
D
2.2−(−2.5)2.2-\left({}^{-}{2}{}.5\right)2.2−(
−
2.5)

Answer 1

To determine which expression is equivalent to the one given (though it was not explicitly stated), let’s analyze the provided answers and their meanings.

1. **Option A:** \( 2.5 - 2.2 \)
2. **Option B:** \( 2.2 + 2.5 \)
3. **Option C:** \( 2.2 + (-2.5) \)
4. **Option D:** \( 2.2 - (-2.5) \)

Let's break each of these down:

- **Option A:** \( 2.5 - 2.2 = 0.3 \)
- **Option B:** \( 2.2 + 2.5 = 4.7 \)
- **Option C:** \( 2.2 + (-2.5) = 2.2 - 2.5 = -0.3 \)
- **Option D:** \( 2.2 - (-2.5) = 2.2 + 2.5 = 4.7 \)

Given these simplifications:

- **Option A** results in \( 0.3 \)
- **Option B** and **D** both result in \( 4.7 \)
- **Option C** results in \( -0.3 \)

Since your initial expression isn’t provided, the comparison can only be made with respect to the nature of arithmetic operations involved.

Typically, options that involve adding or subtracting negative numbers effectively demonstrate the underlying arithmetic properties. If your original expression was a subtraction or an addition between positive and negative values, options C and D may represent respective alternatives.

To choose the correct equivalent expression, please clarify the initial expression you wanted evaluated.