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7nadin3 [17]
3 years ago
10

Can someone plz help me with numbers 16 and 18

Mathematics
2 answers:
o-na [289]3 years ago
7 0

-0.23 I don’t know what to write but it says to at least write 20

yawa3891 [41]3 years ago
3 0
16. Is -1.25 and 18. Is 0.23
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Write a polynomial with rational coefficients having roots 3,3+i and 3-i
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Part 1: If the roots of a polynomial are a, b, and c, then the factors can be written in the form (x - a), (x - b), and (x - c). In this case, we have (x - 3), (x - [3 + i]), and (x - [3 - i]). The three factors are (x - 3)(x - 3 - i)(x - 3 + i).

Part 2: The two factors with complex terms are (x - 3 - i)(x - 3 + i), and multiplying these terms as a difference of two squares can give:
(x - 3)^2 - i^2 = x^2 - 6x + 9 - (-1) = x^2 - 6x + 10

Part 3: We now multiply (x^2 - 6x + 10) by the remaining factor of (x - 3). This results in the cubic expression:
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2 years ago
Help asap, click on pic
Black_prince [1.1K]

Answer:

2.2%

Step-by-step explanation:

748 divided by 340 equals 2.2.

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25, 7*4 = 28 32-28=4 and 42/6=7*3 = 21 + 4 = 25

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