exam Maths Puzzle Numerical Ability

write an equation to solve this problem. the service pool built a pool that was 100ft by 60ft wide. they want to built a sidewalk around the pool and had 450ft of fence. what is the maximum width that the sidewalk can be?

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exam Other Question

What is the slope of a line that is perpendicular to the line that passes through the points (4,7) and (9,3)?

A. -4/5 B. -5/4 C. 4/5 D. 5/4
I have a problem that asks me to find the one real zero and two complex zeros. I just do not know where to even begin and our book has no examples of it. Here is the problem: 2x^3+17x^2+120x+225 Thank you so much!