Question

Without performing the calculation, estimate which expression is larger. Explain how you know
(4 × 10^10)(2 × 10 ^5 )

Answer 1

$\huge\sf{Answer:-}$

4 × 10^10 > 2 × 10^5

Given that,

Second number in scientfic notation.

4 × 10^10 = second number.

2 × 10^5 = second number.

First check the exponent 10.

First number exponent is 10 and some number exponent if 5

10 > 5

Hence,

4 × 10^10 > 2 × 10^5

Answer 2

Answer:

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