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Trava [24]
3 years ago
12

Select the PROPER Scientific Notation for the following value. 659,000,000,000 Question 1 options: 659 × 109 65.9 × 1010 6.59 ×

1011 0.659 × 1012
Mathematics
1 answer:
mina [271]3 years ago
6 0

The <em>proper</em> notation may depend on where you are. In the US, we like there to be one non-zero digit to the left of the decimal point, hence the appropriate form is ...

... 6.59×10¹¹

_____

Elsewhere, the "proper" form may require the first non-zero digit be placed to the right of the decimal point, as in 0.659×10¹². This is also the form used by some computer languages.

In Engineering usage, quite often the desired form is one that has the exponent be a multiple of 3, so the appropriate forms would be 659×10⁹ or 0.659×10¹².

Sometimes when you're doing problems using numbers in scientific notation, it can be convenient to scale the operands so the result comes out with no need for rescaling. For example, if you were to divide 100 by this number, you might write ...

... 100/(65.9×10¹⁰) ≈ 1.517×10⁻¹⁰

Without this "pre-scaling", you would get

... (10²)/(6.59×10¹¹) ≈ 0.1517×10⁻⁹ = 1.517×10⁻¹⁰

which requires rescaling the answer.

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Step-by-step explanation:

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Rama09 [41]

The polynomial A is represented as <u>x - 2</u>, making <u>option A</u> the right choice.

In the question, we are asked to find the correct representation of A, when the algebraic expression (x² + x)/(x + 3) can be rewritten as the algebraic expression A + 6/(x + 3), where A is a polynomial.

Thus, we can write an equation,

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or, A = (x² + x)/(x + 3) - 6/(x + 3) {Simplifying},

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or, A = (x² + 3x - 2x - 6)/(x + 3) {Mid-term factorization},

or, A = {x(x + 3) - 2(x + 3)}/(x + 3) {Taking common},

or, A = {(x - 2)(x + 3)}/(x + 3) {Taking (x + 3) common},

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Learn more about polynomials at

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1 year ago
The sides of a triangle are given as 3x, x - 1 and 3x + 1. If the perimeter [2]
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Step-by-step explanation:

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x=8 <--- Now that we've solved for x we need to plug it back into each side

3(8)=24

(8)-1=7

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Hope this helps :)

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