Graph the pair of parametric equations with the aid of a graphing calculator.x = cos t + 4 cos 3t, y = 5 cos t - 4 sin 3t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the system.3w + x - 2y + z = 4-w + 3x + y - 3z = 44w - x + 3y + 2z = 17 w + x - 3y - z = 0
A. (-4, -2, 4, 3) B. (-1, 3, 3, 1) C. (4, -2, 0, 3) D. (4, -1, 2, -3)
Mathematics
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.
2
A. 4
B. -4
C. 
D. 
Mathematics
Add or subtract as indicated. Write your answer in the form a + bi.(10 + 8i) - (8 + 8i) + (1 + 9i)
A. 1 - 9i B. 3 + 25i C. 3 + 9i D. 1 + 9i
Mathematics
Graph the system of inequalities.2x + 3y ? 6 x - y ? 3 x ? 1
A. 
B. 
C. 
D. 
Mathematics