Find the indicated sum.
A. -4
B. -7
C. -10
D. 6
Answer: B
Mathematics
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Find the length of the curve.x = cos 2t, y = sin 2t, 0 ? t ? 2?
A. ? B. 4? C. 6? D. 2?
Mathematics
Write the product as a sum or difference containing only sines or cosines.cos(6?) cos(5?)
A. 
[ cos ? + cos(11?)]
B. cos2(30?2)
C. 
[cos(11?) - cos ?]
D. 
[cos(11?) - sin ?]
Mathematics
Add.-92 + 5
A. 87 B. -97 C. 97 D. -87
Mathematics
Add or subtract as indicated. Express the answer in pounds and ounces.21 lb 3 oz - 17 lb 12 oz
A. 38 lb 7 oz B. 4 lb 7 oz C. 4 lb 6 oz D. 3 lb 7 oz
Mathematics