Find the distance between the pair of points on the number line.
, 
A. 
B. 
C. 
D. 
Answer: A
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Determine the value of the logarithm. Round to the nearest hundredth.log 3 0.87
A. -0.13 B. -1.24 C. -7.89 D. -0.15
Solve.A whispering gallery is a room in the shape of an elliptic reflector. If a source of sound is placed at one focal point of an elliptic reflector, the sound is reflected through the other focal point. If one person speaks at one focal point, then another person at the other can hear sounds as faint as a whisper. If the whispering gallery is based on the ellipse 
+ 
= 1, how many units from the center of the ellipse would the two people stand?
A. 5 units B. 4 units C. 3 units D. 16 units
Solve.A fossilized leaf contains 34% of its normal amount of carbon 14. How old is the fossil? Use 5600 years as the half-life of carbon 14 and round to the nearest year.
A. 33,788 yr B. 28,438 yr C. 8700 yr D. 3351 yr
Solve the problem.The logistic growth model 
represents the population of a bacterium in a culture tube after t hours. When will the amount of bacteria be 760?
A. 7.84 hours B. 8.24 hours C. 2.55 hours D. 13.52 hours