The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half life of minutes. Suppose in a particular patient the concentration of this drug in the bloodstream immediately after injection is. What will the concentration be minutes later? round your answer to significant digits.

Panthers and leopards prey on deer in an ecosystem. for unknown reasons, the population of leopards increased drastically. what are the likely effects of this change on the species? 1. more food for panthers and more competition for leopards 2. less food and more competition for panthers 3. fewer deer and more competition for panthers 4. more food for deer and less competition for panthers and leopards 5. more food for leopards and less competition for panthers

Analyze the forces acting on a cyclist who is slowing down as he or she climbs a hill

The equation 24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant.what is the value of a? a) -16b) -3c) 3d) 16