exam Maths Puzzle Numerical Ability

5/9(9 + 3 * 6)
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120-18*5

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exam Other Question

what is the sqrt of 30,875? Which of the following coefficients cannot be zero if p(x) is a parabola and of the form p(x) = a(x � k)^2 + h? @ For p(x) to be a parabola, a ≠ 0; else, p(x) would equal constant h.
a. k
b. h
c. a
d. -k