A square purple rock has a orange square in the center. The side length of the orange square is X inches. The width of the purple band that surrounds the orange square is 3 inches. What is the area of the purple band?

In the surface area formula for cylinders which expressionrepresents the lateral area

Find the solutions for a triangle with a =16, c =12, and b = 63º

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil