Rationalize the denominator.
A. 
B. 
- 
C. 
D. 
Answer: C
Mathematics
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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
Mathematics
Find 
. Write the answer in polar form with the argument between 0° and 360°z1 = 10(cos 45° + i sin 45°), z2 = 5(cos 15° + i sin 15°)
A. 2(cos 30° + i sin 30°)
B. 2(cos 45° + i sin 45°)
C. 
(cos 45° + i sin 45°)
D. 
(cos 30° + i sin 30°)
Mathematics
Graph the function.f(x) = 2(x - 3)
A. 
B. 
C. 
D. 
Mathematics
Find all solutions to the equation. Express each result in radians.cos x = - 
A. 
+ 2?n, 
+ 2?n
B. 
+ 2?n, 
+ 2?n
C. 
+ 2?n, - 
+ 2?n
D. 
+ 2?n, 
+ 2?n
Mathematics