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Arada [10]
3 years ago
15

Simplify 2x2+6x-7x+8-3x2+1

Mathematics
1 answer:
Mashcka [7]3 years ago
8 0
2x2 = 4 plus 6x7 = 42 plus 8-3 = 5 x 2 plus 1 = 3

your answer is 59
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Graph y = -1/3x + 5​
Lelu [443]

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91x-35 sorry couildnt graph

Step-by-step explanation:

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Find the area of the shape shown<br> below.
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the area is six units squared

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makayla wanted to buy cookies for the class the cookies are in 1 package? how many cookies are in 10 packages how many cookies i
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4 years ago
What is 125 centimeters to 87.5 centimeters
bagirrra123 [75]
If you are asking how to subtract 125 centimeters and make it 87.5, you have to subtract from 125. The easiest way to do this is to subtract 87.5 from 125, getting 37.5. So, if you add 37.5 to 87.5, you will have 125. So, the correct answer is to subtract 37.5 to get 87.5.
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3 years ago
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Hi, I am new to this website :) I'm currently taking an online trig class on De Moivre's theorem and I don't understand it at al
Vladimir [108]
De Moivre's theorem uses this general formula z = r(cos α + i<span> sin α) that is where we can have the form a + bi. If the given is raised to a certain number, then the r is raised to the same number while the angles are being multiplied by that number.

For 1) </span>[3cos(27))+isin(27)]^5 we first apply the concept I mentioned above where it becomes

[3^5cos(27*5))+isin(27*5)] and then after simplifying we get, [243 (cos (135) + isin (135))] 

it is then further simplified to 243 (-1/ √2) + 243i (1/√2) = -243/√2 + 243/<span>√2 i
and that is the answer.

For 2) </span>[2(cos(40))+isin(40)]^6, we apply the same steps in 1)

[2^6(cos(40*6))+isin(40*6)],

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And the answer is -32 -32 √3 i

Summary:
1) -243/√2 + 243/√2 i
2)-32 -32 √3 i

7 0
3 years ago
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