Solve the problem.The charcoal from a tree killed in a volcanic eruption contained 67.2% of the 
found in living matter. How old is the tree, to the nearest year? Use 
for the half-life of 
A. 3269 years
B. 1570 years
C. 5700 years
D. 2266 years
Answer: A
Mathematics
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Find the ratio of the first number to the second and simplify.0.32 to 0.48
A. 
B. 
C. 
D. 
Mathematics
Find 
for the given function.y = 3 cot 
A. 
csc2 
cot 
B. -6 csc 
C. 6 csc2 
cot 
D. - 
csc2 
Mathematics
Test the equation for symmetry with respect to the given axis, line, or pole.r = 2 - 2 cos ?; the line ? = 
A. Symmetric with respect to the line ? = 
B. May or may not be symmetric with respect to the line ? = 
Mathematics
Solve.The length and width of a rectangle have a sum of 90. What dimensions give the maximum area?
A. Length 44 and width 46 B. Length 36 and width 54 C. Length 45 and width 45 D. Length 35 and width 55
Mathematics