Use exponent properties to interpret exponential expressions, including percent growth and decay.
Convert an exponential decay base to a percent decrease
Problem
For the decay model \(V(t)=20000(0.85)^t\), what does the base tell you about the percent decrease each interval?
Big Picture
What this problem is really about
A decay base tells us the fraction retained, not the fraction lost. We’ll subtract the repeated multiplier from one to find the loss, convert that difference to percent, and keep the decay factor and decay rate in their separate roles.
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