Find the requested sum of the arithmetic sequence.an = -5n + 7Find S4.
A. 8
B. 2
C. -13
D. -22
Answer: D
Mathematics
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Perform the indicated operation.
A. -13
B. -23
C. 13
D. - 
Mathematics
Solve the system of equations.
A. inconsistent (no solution) B. x = 0, y = 2, z = 0 C. x = 0, y = 0, z = 2 D. x = 4, y = 2, z = 0
Mathematics
Use a double-angle identity to find the exact value of the expression.1 - 2 sin2 
A. - 
B. - 
C. 
D. - 
Mathematics
Write in words the expression
A) The opposite of the absolute value of x.
B) The opposite of the opposite of x.
C) The opposite value of x.
D) The absolute value of the opposite of x.
E) The opposite of the opposite of the absolute value of x.
Mathematics