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4 years ago

Find the possible value or values of n in the quadratic equation 2n2 – 7n + 6 = 0.

Mathematics

1 answer:

nika2105 [10]3 years ago

8 0

$2n^2 - 7n + 6 = 0\\
2n^2-4n-3n+6=0\\
2n(n-2)-3(n-2)=0\\
(2n-3)(n-2)=0\\
n=\dfrac{3}{2} \vee n=2
$

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3 years ago

Solve for x<br> Enter the solutions from least to greatest.<br> -4x^2– 7 = -11

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Answer:

x = 1, x = -1

Step-by-step explanation:

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3 years ago

What are the solutions to the following system? StartLayout Enlarged left-brace 1st row negative 2 x squared + y = negative 5 2n

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Answer:

$(\sqrt{2},-1),(-\sqrt{2},-1)$

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Step-by-step explanation:

we have

$-2x^{2} +y=-5$ ----> equation A

$y=-3x^{2} +5$ -----> equation B

solve by substitution

substitute equation B in equation A

$-2x^{2} +(-3x^{2} +5)=-5$

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<em>Find the value of y</em>

$y=-3x^{2} +5$

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For $x=-\sqrt{2}$ ----> $y=-3(-\sqrt{2})^{2} +5=-1$

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4 years ago

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AlexFokin [52]

Answer:

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Step-by-step explanation:

The function representing the cost is given by;

C(x) = 10000 + 90x - 0.08x²

To get the cost of producing the 501st item, we have to first find the cost of producing 500 items and then do the same for 501 items then subtract the values gotten.

Thus;

C(500) = 10000 + 90(500) - 0.08(500)²

C(500) = 10000 + 45000 - 20000

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3 years ago