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PSYCHO15rus [73]
3 years ago
14

Quincy uses the quadratic formula to solve for the values of x in a quadratic equation. He finds the solution, in simplest radic

al form, to be x = StartFraction negative 3 plus or minus StartRoot negative 19 EndRoot Over 2 EndFraction.
Mathematics
2 answers:
matrenka [14]3 years ago
8 0

Answer:

zero, because the discriminant is negative

Step-by-step explanation:

The next question is missing : Which best describes how many real number solutions the equation has?

The quadratic equation gives:

x = \frac{-3 \pm \sqrt{-19}}{2}

The discriminant is equal to -19. A negative discriminant means the quadratic formula has zero real solution.

chubhunter [2.5K]3 years ago
8 0

Answer:

 The answer is zero because the discriminant is negative.

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quester [9]
Y=3x + 8.25
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6 0
3 years ago
A train leaves Westchester at 6:30. What time should it arrive at Middlewich
Sholpan [36]

Answer:

a). 6:51

b). 6:30 am

c). 34 minutes

Step-by-step explanation:

a). Train leaves Westchester at 6:30.

   From the arrival - departure table in column (2),

   Arrival time of the train at middlewich = 6:51

b). Kate has to reach Southam before 9:00 am

   Therefore, time of the latest train that she can catch to get to work on time is 6:30 am

    By this train she can reach at 07:19 at Southam.

c). Duration of journey from Westchester to Eastwick = 06:34 - 06:00

                                                                                        = 00:34

                                                                                        ≈ 34 minutes

8 0
3 years ago
Congruent angle pairs : Find value of x
Alexandra [31]

Answer:

(Opt.B) 18

Step-by-step explanation:

4x = 2y - x (vertically opposite angles are equal)

4x + x = 2y

5x = 2y ----- (1)

4x + 2y + x = 180 (Linear pair angles)

5x + 2y = 180

From (1) we can understand that, the value of 5x and 2y is the same. So,

5x + 5x = 180

10x = 180

x = 180/10

x = 18

Just completing,

Putting the value of x in (1)

5*18 = 2y

90 = 2y

90/2 = y

45 = y

Hope you understand

Please mark as brainliest

Thank You

6 0
3 years ago
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Mashcka [7]

Answer:

answer is 4

Step-by-step explanation:

i33i8239393

8 0
2 years ago
76°<br> x<br> 135°<br> 810<br> X =<br> X=<br> y=
enot [183]

Answer:

x = 68º

Step-by-step explanation:

This trapezoid is a quadrilateral.  All degrees in a quadrilateral have to add up to 360º.  

76º + 135º + 81º + xº = 360º

292º + xº = 360º

xº = 360º - 292º

xº = 68º

5 0
2 years ago
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