A butterfly garden is shaped as a hemispherical dome 50 feet at its maximum height . The density of the dome is approximately 0.5 butterflies per cubic foot. Approximately how many butterflies are in the garden?

The amount of energy it takes to lift a box might be a function of which of the following

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

$5400 is? invested, part of it at 11? % and part of it at 8? %. for a certain? year, the total yield is ? $522.00. how much was invested at each? rate?