Solve the problem.Use the formula N = Iekt, where N is the number of items in terms of the initial population I, at time t, and k is the growth constant equal to the percent of growth per unit of time. An artifact is discovered at a certain site. If it has 54% of the carbon-14 it originally contained, what is the approximate age of the artifact? (carbon-14 decays at the rate of 0.0125% annually.)
A. 3680 years
B. 2141 years
C. 4320 years
D. 4929 years
Answer: D
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Express the number in standard notation.2.0433 × 10-7
A. 0.00000020433 B. 0.000000020433 C. 0.0000020433 D. -204,330,000
Solve the problem. Assume that simple interest is being calculated in each case. Round your answer to the nearest cent.John forgot to pay his $413.00 income tax on time. The IRS charged a penalty of 3% for the 35 days the money was late. Find the penalty that was paid. (Use a 365 day year.)
A. $1.19 B. $414.19 C. $0.14 D. $1.15
If the sequence is geometric, find the common ratio r. If the sequence is not geometric, say so.3, 9, 27, 81, 243
A. 3
B. 9
C. 
D. Not geometric
Write the interval in set-builder notation and graph the set on a number line.[9, ?)
A. {x|x ? 9}
B. {x|x ? 9}
C. {x|x > 9}
D. {x|x < 9}