Solve the system in terms of the arbitrary variable listed.z;x + y + z = 7x - y + 2z = 7
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Evaluate the iterated integral. Select the correct answer.
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Mathematics
Solve the problem using the strategy of making a list or using a diagram.A coin is tossed five times. How many ways can it come up heads 4 times and tails once?
A. 2 B. 5 C. 3 D. 4
Mathematics
Integrate the given expression.
A. 
7 + C
B. 
9 + C
C. - 
x-7 + C
D. -120x-9 + C
Mathematics
Use the average daily balance method to compute the finance charge on the credit card for the previous month.Month: July (31 days)Previous month's balance: $780Interest rate: 20%
A. $11.35 B. $10.00 C. $9.64 D. $9.79
Mathematics