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dem82 [27]
3 years ago
6

Identify the index in the radical below. A. 1 B. 2 C. 3 D. 4

Mathematics
1 answer:
marysya [2.9K]3 years ago
3 0

Answer:

It is four/4 I believe D.4

Step-by-step explanation:

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Show that 4x - x? – 7 is always<br> negative.<br><br><br><br><br> Help
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                                          <em>Question No 7</em>

Answer:

Please check the explanation.

Step-by-step explanation:

Show that 4x - x² - 7 is always negative.

Given

4x - x² - 7

4x - x² - 7 is always negative because:

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  • The value of  - x² - 7 will always be less than 4x for all the values of x

Hence, 4x - x² - 7 is always negative

For example,

let suppose we enter x = 1

4(1)-1^{2} -7\\=4-1-7\\=4-8\\=-4

let suppose we enter x = -1

4(-1)-(-1)^{2} - 7\\= -4 - 1 - 7\\= -12

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Answer Explanation:

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