Find the common ratio for the geometric sequence.
, 
, 
, 
, 
A. 2
B. 6
C. 4
D. Not geometric
Answer: A
Mathematics
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Use l'Hopital's Rule to evaluate the limit.
A. 0
B. 
C. 
D. 1
Mathematics
Solve the problem.How many 10-digit telephone numbers (area code + number) are possible if the first digit cannot be zero, the first three digits cannot be 800 or 900, and the number must end in 0000?
A. 899,000 B. 900,000 C. 654,642 D. 898,000
Mathematics
Find all the first order partial derivatives for the following function.f(x, y) = ln yx
A. 
= ln y; 
= - xln y
B. 
= xln y; 
= - 
C. 
= ln y; 
= 
D. 
= 0; 
= - 
Mathematics
Use identities to simplify the expression. Do not use a calculator.
A. cos 15° B. cot 15° C. tan 15° D. sin 15°
Mathematics