Solve the problem.The charcoal from a tree killed in a volcanic eruption contained 66.1% of the 
found in living matter. How old is the tree, to the nearest year? Use 
for the half-life of 
A. 5700 years
B. 2360 years
C. 1636 years
D. 3404 years
Answer: D
Mathematics
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Given that the x- and y-coordinates of a moving particle are given by the indicated parametric equations, find the magnitude and direction of the acceleration for the specific value of t.x = 
, y = 
, t = 2
A. 0; 123.1° B. 0.01; 303.1° C. 0.01; 123.1° D. 0; 303.1°
Mathematics
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log19
A. 
log195 - 2 log19y - log19x
B. 
log195 - 2 log19y - 2 log19x
C. log195 - log19y - log19x
D. 6 log195 - 2 log19y - log196
Mathematics
Find the probability.A 6-sided die is rolled. What is the probability of rolling a number less than 6?
A. 
B. 
C. 
D. 
Mathematics
Graph the inequality.x + y < -5
A. 
B. 
C. 
D. 
Mathematics