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Oksi-84 [34.3K]
3 years ago
12

Solve −2x2 +3x − 9 = 0

Mathematics
1 answer:
luda_lava [24]3 years ago
8 0
-2x^2 + 3x - 9 = 0
The quadratic is not factorable so quadratic formula must be used.
x = (-b + - √(b^2 - 4ac))/2a
a = -2, b = 3, c = -9
x = (-3 + - √(9 - 4*-2*-9))/-4
x = (-3 + - √(-63))/-4
x = -3 + - 3i√7
     --------------
           -4
x = 3 + 3i√7            x = 3 - 3i√7
    ------------                ------------
         4                              4
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The quantitative relation between two amounts showing the number of times one value contains or it’s contained within the other.
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How do you make 4/3 and 3/3 have a denominator of 5
bagirrra123 [75]

Answer:

Step-by-step explanation:

Actually, you can't.  You could multiply the numerator and denominator of each 4/3 and 3/3 by 5, obtaining:

5(4)          5(3)

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5(3)           5(3)

but this result has little practical value.  4/3 and 3/3 could be combined immediately, obtaining 7/3, if that's what you want to do, as the fractions already have the same denominator (3).

6 0
3 years ago
HELP!! I can't fail. 4 and 5 please!
victus00 [196]

Answer:

4) x = -3 or 8

Step-by-step explanation:

We factories each algebraic expression

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x² - 8x + 3x - 24 = 0

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6 0
3 years ago
Cuál es el capital final de invertir $65.000 durante 5 años a una tasa de interés simple del 5% anual? * 1 punto
SashulF [63]

Respuesta:

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Explicación paso a paso:

Datos dados

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Substiute

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sdas [7]

Step-by-step explanation:

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Option (2).

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Option (3).

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Option (4).

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Hence, the correct options are (2), (3) and (4).

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3 years ago
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