Use the H-R diagrams in this chapter to estimate by what factor a 1000-solar-luminosity, 3000-K protostar is larger than a main-sequence star of the same luminosity.

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

Factor the expression using gcf 9b+45