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nikklg [1K]
3 years ago
7

A polynomial function upper P left parenthesis x right parenthesis with rational coefficients has the given roots. Find two addi

tional roots of upper P left parenthesis x right parenthesis equals 0. i and 7 + 8i
Mathematics
1 answer:
mylen [45]3 years ago
5 0

Given that a polynomial function P(x) has rational coefficients.

Two roots are already given which are i and 7+8i,

Now we have to find two additional roots of P(x)=0

Given roots i and 7+8i are complex roots and we know that complex roots always occur in conjugate pairs so that means conjugate of given roots will also be the roots.

conjugate of a+bi is given by a-bi

So using that logic, conjugate of i is i

also conjugate of 7+8i is 7-8i

Hence final answer for the remaining roots are (-i) and (7-8i).

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A new car is purchased for $47, 000 and over time its value depreciates by one half
andrey2020 [161]

Answer:

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Step-by-step explanation:

you can figure it out by going in increments of 4.5 years because that is the info you have from the problem so

47000 4.5 years later is 23500

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13.5y = 5875

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22.5 years later is 1468.75

22.5 years is about 23 years and to the nearest hundred dollars that is $1500 so that is the answer

Hope this helps! :)

5 0
2 years ago
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GrogVix [38]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Principal Leroy Jenkins wants to build a circular garden in the school courtyard. The garden will have a diameter of 20 feet. Pr
Dovator [93]

Answer:

62.8ft

Step-by-step explanation:

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8 0
3 years ago
Abdul runs 7 miles in 64 minutes. How many minutes does he take per mile?
jekas [21]
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5 0
3 years ago
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I need to know the steps on how to do it
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