Simplify.|22|
A. 22
B. -22
C. 0
D. 44
Answer: A
Mathematics
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Given that the x- and y-coordinates of a moving particle are given by the indicated parametric equations, find the magnitude and direction of the acceleration for the specific value of t.x = 
, y = 
, t = 9
A. 0; 117.1° B. 0.01; 117.1° C. 0.01; 297.1° D. 0; 297.1°
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Graph the polar equation for ? in [0°, 360°).r = 5 sin 2?
A. 
B. 
C. 
D. 
Mathematics
Use reference angles to find the exact value of the expression. Do not use a calculator.tan 
A. 
B. 
C. 1
D. -1
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For the given arithmetic series, what is Sn?a1 = 5, d = 4, and n = 96
A. 18,725 B. 37,440 C. 74,880 D. 18,720
Mathematics