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If a is an integer lying in [-5,30] , th...

If `a` is an integer lying in `[-5,30]` , then the probability that the probability the graph of `y=x^2+2(a+4)x-5a+64` is strictly above the x-axis is `1//6` b. `7//36` c. `2//9` d. `3//5`

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