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Mazyrski [523]
3 years ago
10

Use the discriminant to determine the number and type of solutions the equation has.

Mathematics
1 answer:
lidiya [134]3 years ago
4 0
Discriminant = square root (b^2 -4*a*c)
square root (64 -4*1*12) =
square root (16) =
4
Therefore it has 2 rational soltions


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-1/3 -(-5/12) which shows an equivalent addition expression
dem82 [27]

Answer:

-1/3 - (-5/12) = 1/12.

Step-by-step explanation:

Simpler equation:

6/12 + (-5/12) = 1/12

Or This:

6/12 - 5/12 = 1/12.

hope this helped.

5 0
2 years ago
Diego's sister is twice his age minus 9 years. She is also as old as half the sum of the ages of Diego and both of his 12-year-o
slava [35]

Answer:

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Step-by-step explanation:

x = Diego's age

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First to get rid of the fraction we multiply each side by 2

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The we isolate x

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Plug 14 in for x and then solve for his sister

2(14)-9

28-9

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3 years ago
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