Simplify. −4x2−5(x+3)+x2 −9x2−15 −3x2−5x−15 −4x2−5x−15 −23x

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Hundred and tens tables to make 430 in five different ways