exam Maths Puzzle Numerical Ability

Solve for all values of b that make the trinomial a perfect square.

9-bx+9x^2

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exam Other Question

Sue and Tom Wright are assistant professors at the local university. They each take home about $40,000 per year after taxes. Sue is 37 years of age, and Tom is 35. Their two childr Two telephone poles, 30 ft and 39 ft high, respectively, are 60 ft apart. How long is the wire from the top of one pole to the top of the other pole?