2 years ago

Fifteen minutes past eight in the evening on a 24 hour clock

Mathematics

1 answer:

anastassius [24]2 years ago

4 0

Answer: The time is 20:15 on a military time clock.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Amiraneli [1.4K]

Answer:

$x=3, y = 49\\x=0.5, y = -3.5\\x=-0.67, y = -2.31$

Step-by-step explanation:

$y=6x^2-5\\y=17x-\frac{6}{x}$

Let's substitute the first equation into the second one.

$6x^2-5=17x-\frac{6}{x}$

$6x^3-17x^2-5x+6=0$ - Multiply by $x$ and bring all the terms to one side.

I'll use my graphical calculator to solve this but you could factor:

$x=3\\x=0.5\\x=-0.67$ (All rounded to 2 decimal places)

Now we can substitute these $x$ values into an equation for $y$ .

$y=6x^2 - 5$

$x=3, y = 49\\x=0.5, y = -3.5\\x=-0.67, y = -2.31$

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Read 2 more answers

Fifteen minutes past eight in the evening on a 24 hour clock​

Fifteen minutes past eight in the evening on a 24 hour clock