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Harman [31]
2 years ago
15

30 POINTS FOR THE BRAINLIEST!!!!!

Mathematics
1 answer:
JulsSmile [24]2 years ago
5 0
The triangle is (90 degrees) as we can see. We have found one side of three, which is equal to (60 degrees). All sides of a triangle add up to (180 degrees).
To find y and x, subtract 180 degrees from 60 degrees (180-60=120 degrees)
Remember, the triangle is a 90 degree angle, so one of the angles that add up to 120 is already 90 degrees, subtract 120-90 to get 30. Angle x is 30
To check: all triangles = 180 degrees
60+90+30= 180
You have now completed this question woohooooo time for me to continue my math, wish you all the best random internet stranger
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X+y+z =4
cestrela7 [59]
<span><span> <span>Akar akar persamaan kuadrat 2x² - 3x -1 = 0 adalah x1 dan x2. Persamaan kuadrat baru yang akar akarnya satu lebih kecil dari dua kali akar akar persamaan kuadrat di atas adalah ........</span></span><span><span><span>A.x² - x - 4 = 0</span><span>B.x² + 5x - 4 = 0</span><span>C.x² - x + 4 = 0</span></span><span><span>D.x² + x + 4 = 0</span><span>E.x² - 5x - 4 = 0</span></span></span><span>Jawaban : A
Penyelesaian : 
Akar-akar persamaan lama :  x1 dan x2
                                             
Akar-akar persamaan baru :  xA dan xB
                                             xA = 2x1 - 1
                                             xB = 2x2 - 1
                                             xA + xB  = (2x1 - 1) + (2x2 - 1)
                                                           = 2 (x1 + x2) - 2
                                                           = 2 () - 2
                                                           = 3 - 2
                                              xA + xB = 1
    
                                              xA . xB = (2x1 - 1) (2x2 - 1)
                                                          = 4 x1.x2 - 2(x1 + x2) + 1
                                                          = 4.(-) - 2() + 1
                                                          = -2 - 3 + 1
                                              xA . xB = -4
    
Jadi persamaan kuadrat baru : x² - (xA + xB)x + xA . xB = 0
                                              x² - x - 4 = 0

</span></span>
4 0
3 years ago
The coldest temperature recorded on the surface of a planet was - 248 Celsius is the warmest temperature recorded on the surface
Snowcat [4.5K]

Answer:

-414.4 F° and 226.4 F°

hope it helps

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2 years ago
How long does it take Seth to travel 1 mile Write the constant rate of change in miles per second
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Trick questionyou do not have enough information to make a equation
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In a fruit cocktail, for every 30 ml of orange juice you need 20 ml of apple juice and 50 ml of coconut milk. What proportion of
Orlov [11]

30+20+50 = 100 ml total. 20 ml is orange juice.

So, 30/100 reduce by dividing top and bottom by 30 gives

3/10 is the proportion of orange juice in the fruit cocktail.

Hope this helps! :)

7 0
2 years ago
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8 times a number is equal to 56
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