Find the exact value of the expression, if possible. Do not use a calculator.tan (tan-1 (-6.3))
A. -3.2
B. -6.3
C. 9.4
D. 6.3
Answer: B
Mathematics
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Find the coefficient and degree of the monomial.-1.7x2y4z6
A. coefficient: 12, degree: -1.7 B. coefficient: -17, degree: 6 C. coefficient: -1.7, degree: 2 D. coefficient: -1.7, degree: 12
Mathematics
Solve the system of equations by the addition method.
A. 
B. infinite number of solutions
C. no solution
D. 
Mathematics
Solve the problem.How much will it cost to carpet a 24-foot by 25-foot room if carpeting costs $13.00 per square yard?
A. $866.67 B. $2600.00 C. $650.00 D. $7800.00
Mathematics
Answer the question about the given function.Given the function f(x) = 
, if x = -2, what is f(x)? What point is on the graph of f?
A. 1; (1, -2) B. 7; (-2, 7) C. 1; (-2, 1) D. 7; (7, -2)
Mathematics