Find the curvature of the space curve.r(t) = ti + (sinh t)j + (cosh t)k
A. ? = sinh2 t
B. ? = cosh2 t
C. ? = 
D. ? = 
Answer: C
You might also like to view...
Match the inequality with its correct representation.
A. 0 < x ? 4 B. 0 ? x ? 4 C. 0 < x < 4 D. 0 ? x < 4
At one high school, the mean time for running the 100-yard dash is 
with a standard deviation of 0.9 seconds. The times are normally distributed.Find the percent of times that are above 15.2 seconds.
A. 68% B. 34% C. 50% D. 48%
Estimate the indicated probability.The table shows the number of college students who prefer a given pizza topping.
Determine the empirical probability that a student prefers cheese toppings. Round to the nearest thousandth.
A. 0.322 B. 0.301 C. 0.107 D. 0.356
Solve the problem.Use a graphing calculator to predict about how many widgets will be produced in 2004. 
A. 60 million B. 44 million C. 11 million D. 20 million