Simplify.

-6+{14+2 [60 – 9(1+3)]}

enter your answer in the box.

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

What is the volume of a cone with a height of 6 cm in the radius of 2 cm