Solve the system by the elimination method. x - 2y = 197x - 3y = 67
A. {(-7, -5)}
B. {(6, -5)}
C. ?
D. {(7, -6)}
Answer: D
Mathematics
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Find the length of the parametric curve defined over the given interval.x = 3 cos t, y = 3 sin t, 0 ? t ? ?
A. ? B. 9? C. 6? D. 3?
Mathematics
Find the perimeter by using the appropriate formula, if 
and 
.
?
?
A. 18 ft
B. 30 ft
C. 9 ft
D. 15 ft
E. 36 ft
Mathematics
Determine whether the following is the graph of a function.
A. Yes B. No
Mathematics
Solve the problem.Find the work done in winding up a 300-ft cable that weighs 4.00 lb/ft.
A. 540,000 ft?lb B. 180,000 ft?lb C. 45,000 ft?lb D. 2400 ft?lb
Mathematics