Simplify.29 + 11 ? 10 - (-28)
A. 372
B. 428
C. 78
D. 167
Answer: D
Mathematics
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Find the unit tangent vector of the given curve.r(t) = (7 sin3 5t)i + (7 cos3 5t)j
A. T = (7 cos 5t)i - (7 sin 5t)j B. T = (105 sin 5t)i -(105 cos 5t)j C. T = (sin 5t)i - (cos 5t)j D. T = (7 sin 5t)i - (7 cos 5t)j
Mathematics
The Roman numeral xix can be written as the Hindu-Arabic number
A. 26
B.
| 19 |
C. 16
D. 21
Mathematics
Solve the problem.Evaluate 
at t = 
? for the function w(x, y) = x2 - y2 - 2x; x = cost, y = sin t.
A. 0 B. 2 C. -6 D. -4
Mathematics
Solve the equation.625x = 
A. - 
B. 
C. - 
D. 
Mathematics