Multiply. Write the answer in simplest form.40 ? 
A. 25
B. 
C. 20
D. 
Answer: A
Mathematics
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Find the limit of the sequence if it converges; otherwise indicate divergence.an = 
A. 1
B. 
C. 0
D. Diverges
Mathematics
Ions are atoms or groups of atoms with positive or negative electrical charges. The charges of some ions are given. Use this information to find the total charge. 
2 borate ions and 9 sodium ions
A. -25 B. +15 C. +3 D. -15
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics
Find the limit.
A. 0 B. ? C. -1 D. -?
Mathematics