The focus of a parabola is (-3,-4). The directrix of the parabola is y=1.

What is the equation of the parabola?

0

• y=-2 (2-3) ? - 3

y= * + (x+3) 2 + 3

• y=-1) (2 - 3) ² + 3

• y = o (x+3) 2 -

Five bells begin to ring together and they ring at intervals of 3, 4, 8, 12 and 15 seconds, respectively. How many times will they ring together at the same second in one hour excluding the one at the end?

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What is true about a parallegram

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