Find the curvature of the curve r(t).r(t) = (6 + 5 cos 9)t i - (1 + 5 sin 9t)j + 8k
A. ? = 5
B. ? = 
C. ? = 
D. ? = 
Answer: C
Mathematics
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Solve the system by graphing. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-1, -4)} B. {(-3, -4)} C. {(-3, 4)} D. {(3, 4)}
Mathematics
Solve for the indicated variable.Solve for r.M = ?r2hd
A. r = ±
B. r = 
C. r = 
D. r = 
Mathematics
Solve the inequality.
> 
- 1 or 
? 
A. (-?, -14] B. {-14} C. ? D. (-?, ?)
Mathematics
Perform the indicated operation. Write the answer in scientific notation.(3 × 10-1)(2 × 10-7)
A. 6 × 10-7 B. 6 × 107 C. 60 × 10-8 D. 6 × 10-8
Mathematics