Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.2.1x + 0.7y - 1.3z = 3.95.2x - 7.0y + 1.2z = -4.94.1x + 0.3y + 2.4z = -1.5
A. {(0.3, 0.4, -0.8)}
B. {(0.4, 0.6, -1.3)}
C. {(0.1, 0.2, -0.4)}
D. {(0.6, 0.8, -1.7)}
Answer: D
Mathematics
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Graph.
+ 
= 1
A. 
B. 
C. 
D. 
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Sketch a graph of the rectangular equation. [Hint: First convert the equation to polar coordinates.]
 figure 1.png)
Mathematics
The point P(x, y) on the unit circle that corresponds to a real number t is given. Find the values of the indicated trigonometric function at t.
?Find csc t.
A. 
B. - 
C. - 
D. 
Mathematics
Classify the point as "above," "below," or "on" the line y = -2x + 7.(0, 8)
A. on B. below C. above
Mathematics