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It makes sense that the larger the area of a region, the larger the number of species that inhabit the region. Many ecologists have modeled the species-area relation with a power function and, in particular, the number of species of bats living in caves in central Mexico has been related to the surface area measured in of the caves by the equation
(a) The cave called mission impossible near puebla, mexico, has suface area of . How many species of bats would expect to find in that cave?
(b) If you discover that 5 species of bats live in cave estimate the area of the cave.
Direct Labor
The labor cost attributed directly to the production of goods or services.
Standard Cost
A predetermined cost of manufacturing a single unit or a number of units of a product, calculated for managerial accounting purposes.
Materials Quantity Variance
A measure of the difference between the actual quantity of materials used in production and the expected quantity, multiplied by the standard cost per unit.
Materials Price Variance
The deviation from the standard to the real price of materials, calculated by multiplying this difference by the amount of materials bought.
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