Statement A 2.567 km. to two significant figures Statement B: 2.567 km to three

Question

Statement A 2.567 km. to two significant figures Statement B: 2.567 km to three significant figures Determine the correct relationship between the statements Statement A (2 567 km 3.146 km) to two significant figures Statement B (2.567 km to two significant figures) + (3 146 km to two significant figures) Determine the correct relationship between the statements Statement A: Area of a rectangle with measured length = 2 536 in and width = 1 4 m Statement B: Area of a rectangle with measured length = 2 536 m and width = 1.41 m Since you are not told specific number of significant figures to round to you must use the rules multiplying numbers while respecting significant figures If you need a reminder, consult the hint Determine the correct relationship between the statements

Explanation / Answer

Part B : Statement A : 2.567km+3.146km = 5.713 km. Rounding this to 2 significant figures, we get 5.7 km

Statement B : 2.567km to two significant figures = 2.6 km . 3.146km to two significant figures = 3.1 km

2.6+3.1 = 5.7km

Answer is "equal to"

Part C : 2.536*1.4=3.5504. We need to round this to 2 significant figures = 3.6m2

2.536*1.41 = 3.57576. We need to round this to 3 significant figures = 3.58m2

To compare, we need to have same significant numbers. 3.58 can be rounded to two significant figures = 3.6 m2

Answer is : "equal to"

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