Solve the system by the addition method, if possible.
?
?
A. (2, 2)
B. (-2, -1)
C. (3, 2)
D. (1, 4)
E. (2, 1)
Answer: E
Mathematics
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Find the exact value by using a half-angle identity.tan 
A. -1 + 
B. 1 + 
C. -1 - 
D. 1 - 
Mathematics
Solve graphically. Round solutions to three decimal places, where appropriate.3x2 + 32x + 14 = 0
A. -10.21, -0.457 B. -0.521, -2.146 C. -1.77, -7.297 D. -2.395, -9.872
Mathematics
Find the zeros of the polynomial function and state the multiplicity of each.f(x) = (x2 + 13x + 36)2
A. -
, multiplicity 4
B. 9, multiplicity 2; 4, multiplicity 2
C. -4, multiplicity 2; -9, multiplicity 2
D. 
, multiplicity 2; -
, multiplicity 2
Mathematics
Use the given values of the variables to find the value of the expression.8x + 4y for x = 2, y = 7
A. 84 B. 64 C. 24 D. 44
Mathematics