How Many Times Brighter Does the Sun Appear from Earth $\pi$

question 112

Multiple Choice

How many times brighter does the Sun appear from Earth than it does from Neptune, which has an orbital radius of approximately 30 au?

• A) 30
• B) 30 × 2.512 = 75.4
• C) (30)² = 900
• D) 4 \(\pi\) (30)² = 1130

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Definitions:

Ascending Order

Arranging numbers or other elements in a sequence from the smallest to the largest value.

Approximate

To approximate means to find a value close to the exact answer, often through estimation or rounding.

Real Number

A value that represents a quantity along a continuous line, including both rational and irrational numbers.

True Inequality

A true inequality is an inequality statement that accurately describes the relationship between two values or expressions based on the given conditions.