Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 20 in.
B. 17.5 in.
C. 25 in.
D. 24 in.
Answer: A
Mathematics
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Find the area of the region specified in polar coordinates.the region inside both 
and 
A. 
(? - 1)
B. 
(? - 2)
C. 
(? - 1)
D. 
(? - 2)
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Graph.x2 - y2 = 18
A. 
B. 
C. 
D. 
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It can be shown that the area enclosed between the x-axis and one arch of the sine curve is 2. Use this fact to compute the definite integral.
dx
A. 12? B. 10? C. 2 + 10? D. 2
Mathematics
Write the expression in the standard form a + bi.i19
A. -i B. i C. -1 D. 1
Mathematics