Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. x = 1
B. x = 2
C. x = 
D. x = 
Answer: A
Mathematics
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Determine if the series converges or diverges. If the series converges, find its sum.
A. diverges
B. converges; 
C. converges; 
D. converges; 
Mathematics
Solve the problem.A collection of dimes is arranged in a triangular array, with 15 coins in the base row, 14 in the next, 13 in the next, and so forth. Find the value of the collection.
A. $1.20 B. $12.00 C. $24.00 D. $6.00
Mathematics
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.(-3x5y-6)(5x-1y)
A. -15x4y7
B. 
C. 
D. 
Mathematics
A card is drawn from a standard deck of cards. Expressing your answer as a fraction in simplest form, what is the probability of getting the specified card?an ace
A. 
B. 
C. 
D. 
Mathematics