The answer is: [B]: " 1.75 * 10⁻¹⁵ " .
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Note:
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(2.5 * 10</span>⁻¹⁰<span>)(7 * 10</span>⁻⁶) = (2.5)*(7) *(10⁻¹⁰) *(10⁻⁶)
Note: (10⁻¹⁰) *(10⁻⁶) = 10⁽⁻¹⁰⁾⁺⁽⁻⁶⁾ = 10⁽⁻¹⁰⁻⁶⁾ = 10⁽⁻¹⁶⁾
{Note: xᵃ * xᵇ = x⁽ᵃ⁺ᵇ⁾ } ; ===> Property of exponents;
So; (2.5)*(7) *(10⁻¹⁰) *(10⁻⁶) = (2.5)*(7) * 10⁽⁻¹⁶⁾ ;
2.5 * 7 = 17.5 ;
so; (2.5)*(7) * 10⁽⁻¹⁶⁾ = 17.5 * 10⁻¹⁶
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SInce the answer choices are given in scientific notation;
in terms of "1.75"; we rewrite this value in such format to get the equivalent value; by dividing by "10" ; to get: "1.75 * 10⁻¹⁵ " (note: this value is equivalent; since the number of "zeros" is adjusted.
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The answer is: [B]: " 1.75 * 10⁻¹⁵ " .
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Answer:
I think that it is the last one
Answer: 419,000
Step-by-step explanation:
418,832
In the thousand's place is an 8. Next to it is an 8.
If the # is biiger than 5 it moves up. if it's 4 or less lower it.
the answer is 419,000