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NikAS [45]
2 years ago
8

X^2-11x-38=0, which number would have to be added to complete the square

English
2 answers:
Dmitriy789 [7]2 years ago
8 0

The method is based on the simple observation that, while x2+10xis not a perfect square, x2+ 10x+ 25 is. "Completing the square" means putting in the missing 25 that is needed to form the perfect square. Two obvious concerns are "How do you know you need 25? and "How can you just add 25 anyplace you want?" Here are the steps used:

Montano1993 [528]2 years ago
4 0

Answer:

Okjgfgffubxxsssnjfzhffdzufdzxxff

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1. Invented

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3 years ago
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Answer:

True

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3 years ago
With officers in night, he would march to the canteen like a guardsman. (Annotate)
vekshin1

Answer:

With officers in <em>the </em>(a)<em> </em>night, <em><u>he </u></em>(b)<em><u> </u></em>would march to <em><u>the canteen </u></em>(c)<em><u> </u></em><u><em>like a </em></u><em><u>guardsman. </u></em>(d)

(a) The article "the" is missing before the word night.

(b) "he" is the subject of this sentence. The subject is rather undefined, vague, and needs to be investigated for one to have a clearer understanding of what this snippet is all about.

(c) "the canteen": This is another mystery noun in the above sentence. It begs the question of location. It also raises the question of why the "he" would match off to a canteen in the night.

(d) "like a guardsman": This is a simile that electrocutes the imagination. In this sentence, the three words above, besides acting as a simile and imagery (both of which are literary tools), functions as an Adverbial Clause which serves to qualify the verb <u>march.</u>

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The only instruction given in the question is to Annotate.

To annotate means to give more <em>meaning to, to explain, to interpret, or to make more meaningful.</em>

Please note that an adverbial clause is a dependent clause that while functioning as an adverb qualifies another adverb, a verb, or even an adjective.

By way of further annotation, it suffices to say (with respect to the Grammatical Person) that the sentence above is reported in the third person singular.

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