Uma companhia fabrica e vende dois tipos de produtos, denominados de A e B, vendidos a $10 e $9 por unidade, respectivamente. O custo de produção de x

unidades do produto A e y unidades do produto B é dada pela fórmula (400+2x+3y+0,01(3x^2+xy+3y^2)

Determine os valores de x e y que

maximizam o lucro da companhia. [Nota:lucro=(rendimento-custo)]:

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations

Write the equation of the circle centered at (10,-2) with radius 2.