Answer with explanation:
Length of an object
[tex]=2.1\times 10^4\\\\=2.1 \times 10000\\\\=21,000[/tex]cm
Other unit of measurement are Meter and Kilometer.
→1 Meter = 100 cm
→1 Kilometer= 1,000 meter=100,000 cm
→→21,000 cm = 210 meter = 0.21 Km
Option B:→ length of a city park, is most suitable measurement ,among all other measurement ,that Brad has done.
Second option Might be: Option A→ Length of a city block , may be That Brad has measured.
All other options are Inappropriate, as they require smaller scale or may be larger Scale ,that brad has used to measure
1.≡ Height of a person →→→240 cm (Maximum of 8 feet)
2. ≡Distance across a city →→→1 Km or 2 Km or 3 Km...
3. ≡Height of an apple tree→→→1,000 cm (Maximum)
4. ≡Width of a screen in a theater→→→2,100 cm (Maximum)
5 ≡depth of water in a swimming pool→→→225 cm
None of the five things described above appears, that brad has measured.
Answer:
1. length of a city block
2. length of a city park
Step-by-step explanation:
You first have to make the conversion from scientific notation to regular numbers, the length of that object would be 2.1x 10,000= 21,000, so 21,000 centimeters are only 210 meters, that is too long to be height of a person, or an apple tree, the screen in a theater or the depth of water in a swimming pool, and is way too short to be the length across a city, so the only options would be length of a cuty block, and length of a city park.
