Find the equations of the system shown on the graphing calculator screen.10
-10
A. y = 2x + 1
y = -0.3x - 5.9
B. x + y = 1
x - 3y = -9
C. x - 5y = -16
x + 3y = 8
D. 5x - y = 20
2x + y = 1
Answer: C
Mathematics
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A. 
B. 
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Write the equation in exponential form.log1/464 = -3
A. 641/4 = 3
B. (
)3 = 64
C. (
)-3 = 64
D. (-3)1/4 = 64
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Factor the polynomial completely using the trial and error method.4x2 + x - 68
A. (4x + 17)(x - 4) B. (4x - 17)(x + 4) C. (4x + 4)(x - 17) D. (4x - 4)(x + 17)
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Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.f(x) = cos3 x
A. 
cos x + 
cos 3x
B. 
cos x - 
cos 3x
C. 
cos x + 
cos 3x + cos 2x
D. 
cos x - 
cos 3x - cos 2x
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