Solve the system of equations.
A. (9, 4, 5)
B. (9, 5, 4)
C. (-9, 5, 18)
D. No solution
Answer: B
Mathematics
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Provide an appropriate response.If cos x is replaced by 
and |x| < 0.4, what estimate can be made of the error?
A. |E| < 0.0026667 B. |E| < 0.0042667 C. |E| < 0.0010667 D. |E| < 0.010667
Mathematics
Change to a percent.
A. 3
%
B. 33
%
C. 
%
D. 
%
Mathematics
Solve the equation and state the solution set.
- 
= 
A. {38}
B. {19}
C. {-19}
D. {
}
Mathematics
Use quotient identities to find the indicated function value.sin ? = - 
, cos ? = 
; find tan ?
A. - 
B. - 
C. 
D. 
Mathematics