Solve the radical equation.
- 2 = 
A. {7}
B. {-49}
C. {49}
D. ?
Answer: C
Mathematics
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Find all values that make the rational expression undefined. If the rational expression is defined for all real numbers, so state.
A. x = 
, x = - 
B. x = 8
C. x = 40
D. Defined for all real numbers
Mathematics
Calculate 
.A = 
A. 211 B. -75 C. -15 D. 15
Mathematics
Solve, finding all solutions.cot x = 
(Express your answer in degrees.)
A. 60° + k ? 360° and 240° + k ? 360°, where k is any integer B. 60° + k ? 360° and 210° + k ? 360°, where k is any integer C. 30° + k ? 360° and 210° + k ? 360°, where k is any integer D. 30° + k ? 360° and 240° + k ? 360°, where k is any integer
Mathematics
Plot the point whose polar coordinates are given.(-4, 2?/3)
A. 
B. 
C. 
D. 
Mathematics