Solve.
= x
A. x = -4
B. x = 4
C. x = 
D. x = 7
Answer: B
Mathematics
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Solve the problem.If a person puts 1 cent in a piggy bank on the first day, 2 cents on the second day, 3 cents on the third day, and so on, how much money will be in the bank after 50 days?
A. $25.50 B. $0.50 C. $6.38 D. $12.75
Mathematics
Use the comparison test to determine if the series converges or diverges.
A. Diverges B. Converges
Mathematics
Use the square root property to solve the equation.-2x2 - 10 = -28
A. ±6 B. -14 C. ±3 D. 3
Mathematics
Determine the appropriate rotation formulas to use so that the new equation contains no xy-term.3x2 + 5xy + 3y2 - 8x + 8y = 0
A. x = -y' and y = x'
B. x = 
x' - 
y' and y = 
x' + 
y'
C. x = 
x' - 
y' and y = 
x' + 
y'
D. x = 
(x' - y') and y = 
(x' + y')
Mathematics