A study is done on the population of a certain fish species in a lake. Suppose that the population size P(t) after t years is given by the following exponentia function
P(1) - 510(0.72)

Find the initial population size.

Does the function represent
growth or decay?

By what percent does the population size change each year?

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

What was the first instrument to ever record an earthquake?

Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2