Rectangles E and F are similar. If the area of rectangle E is 420, what is the area of rectangle F? 21 5.25 Rectangle E Rectangle F Area = 420

What is the difference between regular convex and concave polygons

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

Secant be and cf intersect at point d inside a what is the measure of cde