Evaluate the integral.
A. 
B. 
C. 
D. 
Answer: C
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 
for r(t) = (2 sin 5t)i - (10 cos 5t)j + (9 csc 5t)k
A. a
= -50i - 225k
B. a
= 50i + 225k
C. a
= 250j + 225k
D. a
= -50i + 225k
Solve the problem.A rectangular field is to be enclosed with 1190 feet of fencing. If the length of the field is 75 feet longer than the width, then how long is the field?
A. 260 ft B. 335 ft C. 410 ft D. 355 ft
Find the probability.When a single card is drawn from an ordinary 52-card deck, find the probability of getting a red card.
A. 
B. 
C. 
D. 2
Solve the problem.The hypotenuse of an isosceles right triangle is 10 feet longer than either of its legs. Find the exact length of each side.
A. legs: (10 + 10
) ft; hypotenuse: (20 + 10
) ft
B. legs: (10 + 
) ft; hypotenuse: (20 + 
) ft
C. legs: 10 ft; hypotenuse: 20 ft
D. legs: 10
ft; hypotenuse: (10 + 10
) ft