3 years ago

The output of a function is 10 more than 4 times the input. find the input when the output is -26

Mathematics

1 answer:

GarryVolchara [31]3 years ago

8 0

-9 because-26 minus 10 is -36 and -36 divided by 4 is -9

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Anyone know the answer??

Serggg [28]

Answer:

the second option

Step-by-step explanation:

in ax²+bx+c = 0:

$x = \frac{-b+-\sqrt{b^2-4ac} }{2a}$

subtract both sides by 6 to get to this form, as the right side will be left with 0

6x² + 8x - 6 = 0

here, the coefficient for x² (a) is 6, the coefficient for x (b) is 8, and the remaining number added on (c) is -6

plugging our numbers into the formula, we get

$x = \frac{-8+-\sqrt{(-8)^2-4(6)(-6)} }{2(6)}\\= \frac{-8+-\sqrt{64-(-144)} }{12} \\= \frac{-8+-\sqrt{208} }{12} \\ = \frac{-8+\sqrt{208} }{12} or \frac{-8-\sqrt{208} }{12}\\= 0.53518375848 or -1.86851709182\\= approximately -1.87, 0.54$

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1 year ago

Please help Really confusied dont do the last 2 at the bottom

Helen [10]

Number one or 2? so i can help you

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3 years ago

X^2 - 9x -10 =0 has a discriminant of: a. 121 b. 72 c. -359 d. 41 e. 136

Feliz [49]

In the standard form of quadratic
$ax^{2} +bx+c$
the discriminant is
$b^{2} -4ac$
In your quadratic, a = 1, b = -9 and c = -10
Now you need to plug these values into the expression for the discriminant.

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3 years ago

The ratio of swimmers to soccer players is 8 to 13. If there are 78 soccer players, how many swimmers are there?

charle [14.2K]

Answer:

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My name is Ann [436]

Answer:

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Step-by-step explanation:

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3 years ago