Question 29

-0.38

To solve the expression 0.6 - (0.7)(1.4), first calculate (0.7)(1.4), which equals 0.98. Then, subtract 0.98 from 0.6, resulting in -0.38.

A) -0.38

This option is correct as it accurately represents the result of the calculation. By performing the multiplication first and then the subtraction, we find that 0.6 - 0.98 equals -0.38.

B) -0.14

This option is incorrect. If one erroneously calculated 0.6 - 0.7, they might arrive at -0.14, but this does not factor in the correct product of (0.7)(1.4), which is necessary for the accurate computation.

C) -0.42

This option is also incorrect. The result of -0.42 could arise from a miscalculation, possibly confusing the subtraction or misapplying the multiplication, but it does not reflect the correct outcome of the original expression.

D) -1.5

This option is incorrect as well. The value of -1.5 is far from the computed result and suggests a significant error in the arithmetic process, likely stemming from misunderstanding the operations involved in the expression.

Conclusion

The correct answer of -0.38 is derived from the proper execution of the arithmetic operations stated in the question. Each incorrect option either miscalculates the product or fails to perform the subtraction correctly, demonstrating a misunderstanding of how to manage the operations in the expression. Thus, -0.38 stands as the definitive and accurate result.