Sakura has a birdhouse with rectangular walls, a rectangular bottom, and a rectangular entry, like the one modeled below. She will paint the four outside walls but not the bottom or the roof of the birdhouse. What is the area that Sakura will paint?

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters