Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.2logbm - logbn
A. logbm2 ÷ logbn
B. logb(m2 - n)
C. logb(
)
D. logb
Answer: D
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Solve.The radioactive decay of radium 226 can be described by the equation 
where C is the original amount of radium and A is the amount of radium remaining after t years. If 23 milligrams of radium are sealed in a container now, how much radium will be in the container after 100 years. Round to the nearest thousandth.
A. 22.99 mg B. 24.006 mg C. 1.194 mg D. 22.037 mg
Plot the graph of the function f in an appropriate viewing window.
 FIGURE 1.png)
Use the change of base formula to approximate the expression to four decimal places.log7 82
A. 2.7589 B. 0.4416 C. 1.0687 D. 2.2646
Solve.The physics formula for reduced mass (?) of two interacting bodies is 
where m1 is the mass of the first body and m2 is the mass of the second body. Solve for m1.
A. m1 = 
B. m1 = 
C. m1 = 
D. m1 = 