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evablogger [386]
3 years ago
15

A polynomial equation with rational coefficients has the roots -8 and 2-i. Find two additional roots

Mathematics
1 answer:
shutvik [7]3 years ago
8 0

Answer:

Step-by-step explanation:

If the polynomial is a cubic (third-degree), then it is

f(x) = x³+4x²-27x+40

and the other root is 2+i.

However, if we need two additional roots, it implies that the polynomial is a quartic (fourth degree).  In that case, we need additional information.  Reread the original question and  update post if necessary.

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10.9 + (-15.6) + 2.1 write as a decimal​
Delvig [45]

Answer:

-2.6

Step-by-step explanation:

10.9 + (-15.6) becomes 10.9 - 15.6 which equals -4.7. The last step is to add the 2.1 to the -4.7: -4.7 + 2.1 = -2.6

Therefore the answer is -2.6

5 0
3 years ago
Which could be the next step in simply fingers this question 13 +19+7
Alja [10]
You would add 13+19=32

then add 32+7 which equals 39 :P
7 0
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Solve for x: x – 23 = 2
geniusboy [140]

Answer:

X=25

Step-by-step explanation:

This is because X has to be greater than 23. Because you are taking away 35 and the answer is 2, you have to add 23 and 2, and that gives you 25!

4 0
3 years ago
you go out for a long walk you walk 3/4 mile and then sit down to take a rest. then you walk 3/8 of a mile how far did you walk
TiliK225 [7]

<span><span>9/8</span>=1<span> 1/8</span> miles</span>

To calculate the total distance walked, sum the 2 individual distances walked together.

<span>⇒<span>34</span>+<span>38</span></span>

We require to have common denominators, before adding.

<span><span>34</span>×<span>22</span>=<span>68</span></span>

<span>⇒<span>68</span>+<span>38</span>=<span>98</span>=1<span><span>18</span></span></span>
4 0
3 years ago
Write in p by q form 2.6363​
Bogdan [553]

Answer:

Step-by-step explanation:

2.6363=\frac{26363}{10000}\\\\

Count the number of digits after the decimal point.

Here there are 4 digits after decimal point, so, divide by 10000

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