3 years ago

What two numbers adds up 2 and multiplies -80

Mathematics

1 answer:

viva [34]3 years ago

7 0

-8 and 10.

The 8 has to be negative because otherwise the 2 would end up being negative, not positive.

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Write the equation x² + 6x + y² – 8y = 19 in standard form.

kirza4 [7]

Answer:

Formula used :

x²+2xy+y² = (x+y)²
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$→{x}^{2} + 6x + {y}^{2} - 8y = 19 \\ ({x}^{2} + 2.3.x + {3}^{2} ) +({y}^{2} - 2.4.y + {4}^{2} ) = 19 + {3}^{2} + {4}^{2} \\ {(x + 3)}^{2} + {(y - 4)}^{2} = 19 + 9 + 16 \\ \boxed{ {(x + 3)}^{2} + {(y - 4)}^{2} = 44}✓$

3) (x+3)²+(y-4)²=44 is the right answer.

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vovikov84 [41]

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for a special concert by a popular band, the concert hall owner decided to charge $20 per ticket for the first "r" rows and $15

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Point a is located at -6/8 and point B is located at -1/8 what is the distance between points A and B

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The distance between points A and B
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