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The probability that the graph of y=16x^...

The probability that the graph of `y=16x^2 +8(a +5)x-7a-5=0,` is strictly above the x-axis, If `a in [-20,0]`

A

`1//2`

B

`1//17`

C

`17//20`

D

None of these

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The correct Answer is:
D
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