Simplify.
A. 
B. 
C. - 
D. 
Answer: B
Mathematics
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Graph the curve whose parametric representation is given. x = 4 cos2 t , y = 2 sin2t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Mathematics
Find the work done by F over the curve in the direction of increasing t.F = -5yi + 5xj + 4z4k; C: r(t) = cos ti + sin tj, 0 ? t ? 8
A. W = 80 B. W = 40 C. W = 160 D. W = 0
Mathematics
Find the least common multiple (LCM) of the pair of numbers.11 and 9
A. 9 B. 11 C. 99 D. 20
Mathematics
Solve the problem.A wheel with a 22-inch radius is marked at two points on the rim. The distance between the marks along the wheel is found to be 5 inches. What is the angle (to the nearest tenth of a degree) between the radii to the two marks?
A. 13.0° B. 15.0° C. 9.0° D. 11.0°
Mathematics