Simplify the expression.(-21) ÷ (-3)
A. -8
B. 7
C. -7
D. 8
Answer: B
Mathematics
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Find all solutions to the equation. Express the solution in degrees.cot x + 
= 0
A. 150° + 180°n or 330° + 360°n B. 150° + 180°n C. 150° + 360°n D. 330° + 360°n
Mathematics
Find the sum, if it exists, of the terms of the infinite geometric sequence.
A. 
B. 
C. 
D. Does not exist
Mathematics
Solve using the elimination method. Use a graphing calculator to check your answer. x - 4y = -32-7x - 5y = -7
A. (4, 8) B. (-5, 8) C. (-4, 7) D. No solution
Mathematics
Simplify. Assume that variables can represent any real number.
A. 27k2 B. 3k9 C. -3k2 D. 3k2
Mathematics