3 years ago

Can someone please help me please?

Mathematics

1 answer:

jeka57 [31]3 years ago

8 0

B because if you take it it would be b

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Solutions for 2x^2+18x=20, worth a TON, please only 100% answers ! Thank u !

victus00 [196]

Answer:

The solution of the given quadratic equation is 1 and (-10).

Step-by-step explanation:

$2x^2+18x=20$

$x^2+9x=\frac{20}{2}$

$x^2+9x-10=0$

$ax^2+bx+c=0$

Solving equation by quadratic formula:

Here , a = 1,b = 9, c = (-10)

$D=b^2-4ac=(9)^2-4(1)(-10)=121$

$x=\frac{-b+{\sqrt{D}}}{2a}=\frac{(-9)+\sqrt{121}}{2(1)}=1$

$x=\frac{-b-{\sqrt{D}}}{2a}=\frac{(-9)-\sqrt{121}}{2(1)}=(-10)$

The solution of the given quadratic equation is 1 and (-10).

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3 years ago

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oee [108]

Answer:

3/4

Step-by-step explanation:

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const2013 [10]

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Step-by-step explanation:

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Someone help me please

tankabanditka [31]

A is 463
B is 192
C is 384

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3 years ago

Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!

fomenos

Answer:

-8/3

Step-by-step explanation:

find slope

(-1,5) ( 2,-3 )

(-3 -5)/( 2-(-1)) = -8/3

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