Subtract and simplify.
- 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Provide an appropriate response.Derive the identity sec-1(-x) = ? - sec-1 x by combining the following two equations:cos-1(-x) = ? - cos-1 xsec-1 x = cos-1(1/x)
What will be an ideal response?
Mathematics
Write the answer to the problem as an algebraic expression.Bill is q years old. How old will he be in 8 years? How old was he 4 years ago?
A. q8; 3 - 4 B. q + 8; 4 - 3 C. q + 8; q - 4 D. q + 4; q - 8
Mathematics
Find the x-intercepts (if any) for the graph of the quadratic function.y + 9 = (x + 3)2
A. (0, 0) and (-6, 0) B. (0, 0) C. (6, 0) and (-6, 0) D. (0, 0) and (6, 0)
Mathematics
Solve the system of equations.x - y + z = 2x + y + z = 0x + y - z = -6
A. {(-1, 3, -2)} B. {(3, -2, -1)} C. {(-2, -1, 3)} D. {(-2, 3, -1)}
Mathematics