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 47% 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. 2623 years
B. 4240 years
C. 6040 years
D. 3760 years
Answer: C
Mathematics
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Find the range of the given function.f(x) = -2x2 - 8x - 12
A. (-?, -2] B. [4, ?) C. (-?, -4] D. [2, ?)
Mathematics
Multiply.
A. 0.000954 B. 9.54 C. 0.954 D. 0.0954
Mathematics
Solve the problem.A woman deposits $237 in the bank, and each month afterward deposits 7% more than the month before. Write the first four terms of the geometric sequence that gives the amount of her deposit each month.
A. $253.59; $271.34; $290.34; $310.66 B. $237; $1659; $11,613.00; $81,291.00 C. $237; $253.59; $271.34; $290.34 D. $1.07; $1.14; $1.23; $1.31
Mathematics
Find the reciprocal.
A. -21
B. 
C. 
D. 
Mathematics