3 years ago

How many solutions does the equation below have?

Mathematics

1 answer:

Elina [12.6K]3 years ago

3 0

Answer:

1.one solution is the answer

Step-by-step explanation:

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Dmitriy789 [7]

Answer:

2(d - 3) is the equation. You cannot solve for d. You can only simplify it

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ivann1987 [24]

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3 years ago

What algebraic expression represents the phase “two times the quantity of a number minus 12”

MakcuM [25]

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Step-by-step explanation:

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3 years ago

Find the solutions of the quadratic equation -9c² +2 +3 = 0.

Tresset [83]

Given that,

An equation : -9c² +2c +3 = 0

To find,

Find the value of x.

Solution,

We have, -9c² +2c +3 = 0

We can solve it using the formula as follows :

$x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

Here, a = -9, b = 2 and c =3

Put the values,

$c=\dfrac{-2\pm \sqrt{(2)^2-4(-9)(3)}}{2(-9)}\\\\c=\dfrac{-2+\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}, \dfrac{-2-\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}\\\\c=-0.47, 0.69$

So, the solution are -0.47 and 0.69.

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3 years ago