Simplify
(7+2√50)(5-2√2), leaving the answer in form a+b√18

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You put the following items into your rucksack. ham 600 g cheese 380 g tomatoes 270 g how much do all the ingredients weigh in total?

Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.