Write the interval as an inequality involving x, and illustrate the inequality using the real number line.[-1, 8)
A. -1 ? x < 8
B. x < 8
C. -1 < x ? 8
D. -1 ? x < 8
Answer: A
Mathematics
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Evaluate the requested trigonometric function using the information given. csc ? = - 
; ? < ? < 3?/2Find cot ?.
A. 
B. - 
C. - 
D. - 
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Use Cramer's Rule, if possible, to solve the system of linear equations. 
A. (5, 1, 2) B. (5, -1, -2) C. (6, -1, 2) D. (1, 2, 1)
Mathematics
Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 1
B. 
C. 
D. 
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Identify whether the equation, when graphed, will be a parabola, circle, ellipse, or hyperbola.4x2 + 9y2 = 36
A. circle B. ellipse C. parabola D. hyperbola
Mathematics