the width of a rectangle is 5 cm less than the length. if the area is 84cm^2, find its length
Sarah has 3/4 of a cake. She eats 1/2 of the cake and then gives 1/4 of the remaining cake to her friend. How much cake does Sarah...
x2x^{2}x2 = 5-y, y2y^{2}y2 = 5-x, find xy
largest interval of 5x+2/x-7
derivative of (1/t)-1
w10w^{10}w10 x w3w^{3}w3
2+2
(770-X)+(770-X*(18/100))=550
w10w^{10}w10 * w3w^{3}w3
simplify 36*(1 - cos(x))*(1 + cos(x)/2 +sqrt(3)*sin(x)/2)