Find the exact value of the indicated trigonometric function of ?.sin ? = - 
, tan ? > 0Find sec ?.
A. - 
B. - 
C. - 
D. 
Answer: B
Mathematics
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3
A. 
x3 + 
x2 + 25x + 125
B. 
x3 + 
x2 + 25x + 125
C. 
x3 + 
x2 + 125
D. 
x6 + 
x3 + 125
Mathematics
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.P(x) = 2x8 + 3x6 + 3x4 + 2x2 + 5
A. 0 positive; 0 negative B. 0 positive; 0 or 2 negative C. 0 or 2 positive; 0 negative D. 4 positive; 0 negative
Mathematics
Solve the problem.Given f(x) = x2 - 5x - 7, find f(0).
A. 7 B. 0 C. -7 D. 49
Mathematics
Use matrices to solve the system of equations (if possible). Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
?
?
?
A. ?(-3, -2, 6, 1) B. (-3, 2, -6, -1) C. (3, -2, 6, 1) D. (3, -2, 6, -1) E. (3, -2, -6, 1)
Mathematics