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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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Sue has taken four exams so far in her History course. Her scores are 84.0, 78.2, 93, and 87.5. What is the average of these sco
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Step-by-step explanation:

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A scuba diver descends farther down into the ocean from an initial depth of 15.2 feet below sea level. The scuba diver descends
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2 years ago
Use factoring to find the following quotients:
ira [324]

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2a + 5.

Step-by-step explanation:

            2a + 5    <---------- Quotient

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3 0
3 years ago
Sebastian solved the radical equation y + 1 = but did not check his solution. (y + 1)2 = y2 + 2y + 1 = –2y – 3 y2 + 4y + 4 = 0 (
Softa [21]

Answer:

There are no true solutions to the equation.

Step-by-step explanation:

<u><em>The correct equation is</em></u>

y+1=\sqrt{-2y-3}

Solve for y

squared both sides

(y+1)^2=(-2y-3)

(y^2+2y+1)=(-2y-3)

y^2+2y+1+2y+3=0

y^2+4y+4=0

(y+2)(y+2)=0

y=-2

<em>Verify</em>

substitute the value of y in the original expression

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therefore

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4 0
3 years ago
Perform the indicated operation. -8 + (-4)
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3 0
3 years ago
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