What are the coordinates of the hole in the graph of the function? f(x)=x2−3x−10x−5
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(there is no graph btw)

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.

Huong is organizing paperback and hardback books for her club's used book sale. the number of paperbacks is 12 less than three times the number of hardbacks. huong had 162 paperbacks. how many hardback books were there?