Identify the angles that are congruent.
A. ?KON ? ?KOL; ?MON ? ?LOM
B. ?KOL ? ?LOM; ?KON ? ?MON
C. ?KOM ? ?MOK; ?LON ? ?NOL
D. ?KOL ? ?MON; ?KON ? ?LOM
Answer: D
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Write the equation in standard form. Then identify the vertex of the parabola.x = -2y2 + 9y - 7
A. x = -2
2 + 
; 
B. x = -2
2 + 
; 
C. x = -2
2 + 
; 
D. x = 2
2 - 
; 
The number line in the following graphic represents fictional net exports in billions of dollars for five countries. Net exports are obtained by subtracting total imports from total exports; a negative net export means the country imported more goods than it exported.
Estimate the net amount of exports for Denmark.
A. -20 billion dollars B. 30 billion dollars C. -40 billion dollars D. -30 billion dollars
Using the graph, determine any relative maxima or minima of the function and the intervals on which the function is increasing or decreasing. Round to three decimal places when necessary.f(x) = 
x3 + 
x2 - x + 1
A. relative maximum: 0.684 at x = 0.549; relative minimum: 2.056 at x = -1.215; increasing 
decreasing 
B. relative maximum: 2.056 at x = -1.215; relative minima: 0.684 at x = 0.549 and 1 at x = 0; increasing 
decreasing 
C. relative maximum: 2.056 at x = -1.215; relative minimum: 0.684 at x = 0.549; increasing 
decreasing 
D. no relative maxima or minima; increasing 
decreasing 
Use Descartes' Rule of Signs to determine the possible number of positive and negative zeros of 
.
A. 3 positive reals or 1 positive real; 3 negative reals or 1 negative real B. 3 positive reals or 1 positive real; no negative reals C. 1 positive real; 3 negative reals or 1 negative real D. 3 positive reals or 1 positive real; 1 negative real E. no positive reals; no negative reals