Write the following in exponential form, (values are rounded off)i) To

1.	Write the following in exponential form, (values are rounded off)i) Total surface area of the Earth is 510,000,000 square kilometers.ii) Population of Rajasthan is approximately 7,00,00,000.iii) The approximate age of the Earth is 4550 million years.iv) 1000 km in meters.
Answer» i) 51 × 10⁷ = 3× 17 × 10⁷ ii) 7 × 10⁷ iii) 4550 millions = 4550 × 10,00,000 (v 1 million =10 lakhs) = 455 × 10⁷ = 91 × 5 × 10⁷ = 5 × 7 × 13 × 10⁷ iv) 1 km = 1000 m ∴ 1000 km = 1000 × 1000 m = 10⁶

Write the following in exponential form, (values are rounded off)i) Total surface area of the Earth is 510,000,000 square kilometers.ii) Population of Rajasthan is approximately 7,00,00,000.iii) The approximate age of the Earth is 4550 million years.iv) 1000 km in meters.

Answer»

i) 51 × 10⁷ = 3× 17 × 10⁷

ii) 7 × 10⁷

iii) 4550 millions = 4550 × 10,00,000 (v 1 million =10 lakhs)

= 455 × 10⁷ = 91 × 5 × 10⁷ = 5 × 7 × 13 × 10⁷

iv) 1 km = 1000 m

∴ 1000 km = 1000 × 1000 m = 10⁶