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Please give me correct value.


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- The height of a certain hill (in feet) is given by h(x, y) = 10 (2xy - 3 x^2 - 4y^2 -18x +28y + 12), where y isthe distance in miles (north), x the distance east of South Hadley, Massachusetts.a.) Where is the top of the hill located? b.) How high is the hill? c.)How steep is the slope (in feet per mile) at a point 1 mile north and one mile east of South Hadley? Inwhat direction is the slope steepest, at that point? d.) Make a contour map and a 3D plot of the area surrounding South Hadley, from 8 miles west to 4 mileseast, and 2 miles south to 8 miles north. Plot only positive heights on the 3D graph; use If to help yououtWhat is the sum of 44.06005 s, 0.0598 s, and 1103.4 s? Answer the question with correct number of significant figures. Note: use the rule for addition and subtraction explained in the book.I need help with this question. I also don't know what the units should be for the answer. Is it m/s^2 or is it kg m/s^2
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