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choli [55]
3 years ago
8

4.

Mathematics
2 answers:
UkoKoshka [18]3 years ago
5 0

Answer:A

Step-by-step explanation:

RideAnS [48]3 years ago
5 0
The answer is a hope this helps
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Solve the equations if possible <br><br> * -5×=×+6(1-×)<br><br> *(2×-5)²=(2×-1)(2×+1)-10(2×-1)
Allushta [10]
-5x = x + 6(1-x)

-5x = x + 6(1) + 6(-x)
-5x = x + 6 -6x
-5x = x - 6x + 6
-5x = -5x + 6
-5x + 5x = 6
0 = 6  Not equal. No solution.

(2x-5)² = (2x-1)(2x+1) -10(2x-1)
(2x-5)(2x-5) = (2x-1)(2x+1) - 20x + 10
2x(2x-5)-5(2x-5) = 2x(2x+1)-1(2x+1) - 20x + 10
4x² - 10x -10x + 25 = 4x² + 2x - 2x -1 - 20x + 10
4x² - 20x + 25 = 4x² - 20x - 1 + 10
4x² - 20x + 25 = 4x² - 20x - 9

Not equal. No solution.

8 0
2 years ago
Which numbers are irrational?
irakobra [83]

Answer:

√14 and √42. hope this helps.

5 0
2 years ago
I need help with number 15
Kay [80]
400,7,000 i think im not quit sure i dont know 

7 0
3 years ago
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At the dog park, 2 dogs are black with spots, 5 dogs are white with spots, 1 dog is solid white, and 4 dogs are solid black. Wha
Nikolay [14]
Its 11/12 , you need to divide the "wanted results" (every dog which is either black, with spots or both ) by every every possible result ( all dogs ). so 11/12=0.92
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Please help me I keep getting different answers
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804 * 219 = 176,076
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3 years ago
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