Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a10 when a1 = -5, r = -2.
A. -5120
B. 2564
C. 2560
D. -23
Answer: C
Mathematics
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Provide an appropriate response.If 
of the telephone workers in a city are female, what percent are female?
A. 40% B. 30% C. 60% D. 50%
Mathematics
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.
1/4
A. 4ab2
B. 
C. 
D. 
Mathematics
Solve for the specified variable.I = 
for R
A. R = kE - I
B. R = 
C. R = kEI
D. R = 
Mathematics
The price of a certain commodity in dollars/unit at time 
(measured in weeks) is given by
?
?
What is the average price of the commodity over the 7-week period from 
to 
?
?
Round the answer to the nearest cent.
?
A. $10.14
B. $12.43
C. $6.81
D. $7.92
E. $4.15
Mathematics