Find the curvature of the curve r(t).r(t) = (10 + 9 cos 5t) i - (1 + 9 sin 5t)j + 4k
A. ? = 
B. ? = 
C. ? = 
D. ? = 9
Answer: A
Mathematics
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Identify the type of surface represented by the given equation.
+ 
- 
= 1
A. Hyperboloid of two sheets B. Hyperboloid of one sheet C. Elliptical cone D. Ellipsoid
Mathematics
Solve the problem.Find the angle ? given x = 51, y = 16, ? = 60°.
A. 17.42° B. 42.58° C. 12.58° D. 120°
Mathematics
Perform the indicated operation and express with the proper accuracy and precision. The first number given is approximate and the second number is exact. (Use calculator if needed).9.37 ÷ 6281
A. 0 B. 0.00149 C. 0.0014918 D. 0.0
Mathematics
Estimate the slope of the curve at the indicated point.
A. 1 B. -1 C. Undefined D. 0
Mathematics