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harina [27]
4 years ago
7

(2+i)(3-5i)-(1-4i)^2​

Mathematics
1 answer:
Anna35 [415]4 years ago
5 0
This should be the answer if not my bad

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During a period of extreme cold, the average daily temperature dropped decreased by 112°F day. How many days did it take for the
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It takes about 4 days for the temperature to decrease by 9°F.

An equation is an expression that shows the relationship between two or more variables or numbers.

Let x represent the number of days. Given that the temperature drop decreased by 1 1/2°F each day (- 1 1/2), for it to decrease by 9°F (-9):

-1 1/2 * x = -9

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It takes about 4 days for the temperature to decrease by 9°F.

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Multiply the square root of 20 and the square root of 63
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Since they both have the same variable, you can add them, 5x+9x is 14x
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An experiment consists of drawing a marble out of a bag, observing the color, and then placing it back in the bag. Suppose the e
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\mathbb P(\text{red})\approx\dfrac{38}{75}
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Because the marble is replaced after being drawn, and so the number of marbles of a given color remains the same, the event of drawing any given color is independent of what was drawn before. So

\mathbb P(\text{2 consecutive yellows})\approx\dfrac3{75}\cdot\dfrac3{75}=\dfrac1{625}
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4 years ago
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