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Nikitich [7]
3 years ago
7

What is 5.1234 roundd to the thousands

Mathematics
1 answer:
Sveta_85 [38]3 years ago
8 0
5.1234 to the nearest thousandths is 5.123
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Solve 2x2 + 12x - 14 = 0 by completing the square
vovangra [49]

Answer:

<h2>x = -7 or x = 1</h2>

Step-by-step explanation:

(a+b)^2=a^2+2ab+b^2\qquad(*)\\\\\\2x^2+12x-14=0\qquad\text{divide both sides by 2}\\\\x^2+6x-7=0\qquad\text{add 7 to both sides}\\\\x^2+2(x)(3)=7\qquad\text{add}\ 3^2=9\ \text{to both sides}\\\\\underbrace{x^2+2(x)(3)+3^2}_{(*)}=7+9\\\\(x+3)^2=16\Rightarrow x+3=\pm\sqrt{16}\\\\x+3=-4\ or\ x+3=4\qquad\text{subtract 3 from both sides}\\\\x=-7\ or\ x=1

5 0
3 years ago
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erastovalidia [21]

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Step-by-step explanation:

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2 years ago
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Hunter-Best [27]

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option 2

Step-by-step explanation:

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The angle between due East and due North is 90°

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Which numbers are a distance of 2 units from 8 on a number line?
AlladinOne [14]

Step-by-step explanation:

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this is the answer. I am sure

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