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Olin [163]
2 years ago
9

(a) Use the fundamental theorem of algebra to determine the number of roots for 2x^2+4x+7 show your work

Mathematics
1 answer:
postnew [5]2 years ago
4 0

Answer:

The answer to your question is: This polynomial does not have root, it does not intercept the x-axis.

Step-by-step explanation:

a)

                                             2x² + 4x + 7

To determine the number of roots of this polinomial, just look at the higher power and that number will be the maximum possible number of roots.

In this exercise, the maximum power is 2, so this polynomial could have at most 2 roots.

b) Find the possible roots of the polynomial, which are multiples of 7

   Possible roots:  ±1, ±7

                                             2x² + 4x + 7

Use synthetic division to find the roots

                                   2     4     7       1

                                          2     6                              

                                   2     6    13                   +1 is not a root

                   

                                   2    4     7        -1

                                        -2    -2                  

                                   2    2    5                    -1 is not a root

                                  2     4     7         7

                                         14   126                  

                                  2     18  133                  +7 is not a root

                                  2     4     7        -7

                                        -14   70                  

                                  2    -10   -77              -7 is not a root

                   

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7 0
1 year ago
Jen and Ariel are reading a 400 page novel for their literature class. Jen decides to read 100 pages the first day and 50 pages
Furkat [3]

Answer:

Option B is the correct answer.

Step-by-step explanation:

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Option B:

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Option C:

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6 0
2 years ago
Read 2 more answers
An arena receives $1,700 per event for 12 concerts. If the costs for this sponsorship total $14,000, what is the profit margin f
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Answer:

total profit margin for all 12 concert is $6,400.

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Step-by-step explanation:

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Total money received for 12 event = Amount of money received for one event * Total no of concert

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Profit margin is the difference money invested and money earned.

here total investment is $14,000

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Therefore profit margin = money earned - total investment

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Therefore total profit margin for all 12 concert is $6,400.

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profit margin for one concert = total profit margin for all 12 concert/total no of concert  = $6,400/12 = $533.33

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6 0
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The correct answer would be, Jeremy rides at a greater speed than Kevin.

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Learn more about Time and Distance problem at:

brainly.com/question/3581191

#LearnWithBrainly

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