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Select the correct answer.

Venus is an average distance of 108.2 million kilometers from the Sun. Use the conversion factor [tex]$1 AU = 1.5 \times 10^{8}$[/tex] km to convert this distance to astronomical units. Choose the closest answer.

A. [tex]$0.72 \, AU$[/tex]
B. [tex]$1.25 \, AU$[/tex]
C. [tex]$3.56 \, AU$[/tex]
D. [tex]$45.63 \, AU$[/tex]
E. [tex]$96.12 \, AU$[/tex]

Sagot :

To convert the average distance of Venus from the Sun from kilometers to astronomical units (AU), you can follow these detailed steps:

1. Identify the given distance from the Sun to Venus in kilometers.
- Distance from Sun to Venus: 108.2 million kilometers (108.2 × 10^6 km).

2. Identify the conversion factor between kilometers and astronomical units.
- 1 AU = 1.5 × 10^8 km.

3. Use the conversion factor to convert the distance from kilometers to AU. This involves dividing the distance in kilometers by the number of kilometers in one AU.

[tex]\[ \text{Distance in AU} = \frac{\text{Distance in kilometers}}{\text{Conversion factor (km to AU)}} \][/tex]

4. Substitute the given values into the formula:

[tex]\[ \text{Distance in AU} = \frac{108.2 \times 10^6 \text{ km}}{1.5 \times 10^8 \text{ km/AU}} \][/tex]

5. Perform the division:

- First, calculate the values in the numerator and the denominator:

[tex]\[ \frac{108.2 \times 10^6}{1.5 \times 10^8} \][/tex]

- Simplify the division:

[tex]\[ \frac{108.2}{150} = 0.7213333333333334 \][/tex]

The calculated distance is approximately 0.7213 AU.

6. Compare the result with the given options and select the closest answer.

- A. [tex]\(0.72 \, \text{AU}\)[/tex]
- B. [tex]\(1.25 \, \text{AU}\)[/tex]
- C. [tex]\(3.56 \, \text{AU}\)[/tex]
- D. [tex]\(45.63 \, \text{AU}\)[/tex]
- E. [tex]\(96.12 \, \text{AU}\)[/tex]

The approximate distance of 0.7213 AU is closest to option A, [tex]\(0.72 \, \text{AU}\)[/tex].

Therefore, the closest answer is:

A. [tex]\(0.72 \, \text{AU}\)[/tex]