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____ [38]
3 years ago
12

16. Find the domain of x^2 + 5x + 4 / x^2 + 7x + 6

Mathematics
1 answer:
seropon [69]3 years ago
7 0

Answer:

what is 52437 rounded to the bearest hundred

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Eduardwww [97]

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What is the value of (7 + 2i)(3 - i)?
Harrizon [31]
There are two ways to work this out: normal variables or using "imaginary" numbers.

Normal variables:
(7+2i)(3-i)\\(7*3)+[7*(-i)]+(3*2i)+[2i*(-i)]\\21-7i+6i-2i^{2}\\\\21-i-2i^{2}

Imaginary numbers:
Using the result from earlier:
21-i-2i^{2}
Now since i = \sqrt{-1}, then the expression becomes:
21-i-2i^{2}\\21-i-2(\sqrt{-1})^{2}\\21-i+(-2)(-1)\\21-i+2\\\\23-i
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LenaWriter [7]

Answer:

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Step-by-step explanation:

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3 years ago
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Which expression makes the equation true for all values of x? *
zavuch27 [327]

1 and 4 will be the expression that makes the equatio. true for all values of x to prove i have done it in the picture attached in this message

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3 years ago
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Which expression equals a number that is NOT a rational number?
Leviafan [203]

Answer:

The correct answer would be 2π x 2²/5

Step-by-step explanation:

First, calculate the product, and evaluate the power which would be 2³π/5 and the solution is in an alternate form, therefore making it rational. :)

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3 years ago
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