Perform the division.
A. r2 + 4
B. r2 - 4
C. r + 4
D. r - 4
Answer: D
Mathematics
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Answer the question.Assume a is positive, b is negative, and c is positive for the expressiona + ( b ? c)Tell whether the value of the given expression is positive, negative or cannot be determined.
A. Negative B. Cannot be determined C. Positive
Mathematics
Perform the indicated operation and express in lowest terms.
- 
A. 
B. x + 3
C. 
D. 
Mathematics
Solve the equation in the real number system.x4 - 5x2 - 36 = 0
A. {-2, 2} B. {-3, -2, 2, 3} C. {-6, 6} D. {-3, 3}
Mathematics
Identify and graph the polar equation.r = 2 - 2 sin ? 
A. 
cardioid
B. 
cardioid
C. 
cardioid
D. 
cardioid
Mathematics