Solve the problem.A fossilized leaf contains 24% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as the half-life of carbon 14.
A. 34,925
B. 25,629
C. 2213
D. 11,509
Answer: D
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Use the given growth rate to find the approximate doubling time and to predict the population in 50 years of a growing suburban town (based on a current population of 100,000).Use the average growth rate between 1970 and 2000, which was about 1.4%.
A. 52 years; population in 50 years = 229,740 B. 60 years; population in 50 years = 174,110 C. 50 years; population in 50 years = 200,000 D. 45 years; population in 50 years = 151,572
Write fraction as decimal number. Use bar notation for repeating decimals.
A. 0.27
B. 0.
C. 0.2
D. 0.
Write the opposite of the polynomial and simplify your result.-x4 - 6x3 - 2x
A. x4 + 6x3 + 2 B. x4 + 6x3 + 2x C. -x4 + 6x3 + 2x D. x4 + 6x3 + 2x2
Graph the inequality.y ? - 5x
A. 
B. 
C. 
D. 