If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the velocity vector.r(t) = (4t2 - 1)i + 
j
A. v = (8)i + 
j
B. v = (8t)i - 
j
C. v = (8t)i + 
j
D. v = 
i + (8t)j
Answer: C
You might also like to view...
Write an equation in slope-intercept form of the line satisfying the given conditions.Through (9, 9), perpendicular to -4x - 3y = -9
A. y = - 
x + 
B. y = - 3x - 3
C. y = 
x + 
D. y = 
x + 
Solve the problem.In one city, the local cable TV company charges $3.08 for each pay-per-view movie watched. In addition, each monthly bill contains a basic customer charge of $29.50. If last month's bills ranged from a low of $35.66 to a high of $75.70, over what range did customers watch 
movies?
A. movies watched varied from 2 to 15 inclusive B. movies watched varied from 3 to 17 inclusive C. movies watched varied from 5 to 17 inclusive D. movies watched varied from 1 to 14 inclusive
Decide whether the relation defines a function.{(1, -8), (2, -3), (6, -4), (8, -4), (12, 8)}
A. Not a function B. Function
Find the expected value for the random variable.A business bureau gets complaints as shown in the following table. Find the expected number of complaints per day. 
A. 2.73 B. 3.01 C. 2.85 D. 2.98