Marine biologists want to estimate the green sea turtle population in Florida. They tag 400 green sea turtles. Over the next 4 months, they gather four samples of 75 green sea turtles each and record how many have a tag. The results are shown in the table. Based on these results, how many green sea turtles should they estimate live in Florida?

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

Someone me what is the area of this figure? 18m 18m 8m 16m

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?