Find the intersection of the given intervals.(-?, 6) ? [-7, 15)
A. (-?, 15)
B. [-7, 6)
C. (-?, -7]
D. (6, 15)
Answer: A
Mathematics
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Solve the equation for the indicated variable.I = 
for n
A. n = 
B. n = 
C. n = 
D. n = IR(Ir - E)
Mathematics
Solve the system of equations by substitution. x + y = 02x + 3y = -7
A. (-7, 7) B. (-6, 6) C. (6, -6) D. (7, -7)
Mathematics
Determine whether the given function is positive or negative for values of t in the specified quadrant. Quadrant IV, tan t
A. Negative B. Positive
Mathematics
Determine the domain of the variable x in the expression.f(x) = 
A. {x|x ? 0} B. {x|x ? -6} C. {x|x ? 6} D. all positive real numbers
Mathematics