iancq2003p5nq13 iancq2003p5nq13
  • 20-06-2019
  • Chemistry
contestada

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)?
A. 5.0 × 103
B. 5.0 × 10-3
C. 5.0 × 1017
D. 5.0 × 10-17

Respuesta :

sabahs sabahs
  • 20-06-2019
That would be A.

2.5*2*10^(10-7)=5*10^3
Answer Link
slicergiza slicergiza
  • 30-09-2019

Answer: The correct option is,

A. [tex]5.0\times 10^3[/tex]

Explanation:

Given expression,

[tex](2.5\times 10^{10})\times (2.0\times 10^{-7})[/tex]

[tex]=2.5\times 2.0\times 10^{10-7}[/tex]

( By using product property of exponent i.e. [tex]a^m\times a^n = a^{m+n}[/tex] )

[tex]=5.0\times 10^3[/tex]

Therefore,

OPTION A is correct.

Answer Link

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