Solve the problem.A barge takes 5 hours to move (at a constant rate) downstream for 45 miles, helped by a current of 2 miles per hour. If the barge's engines are set at the same pace, find the time of its return trip against the current.
A. 9 hr
B. 90 hr
C. 5 hr
D. 7 hr
Answer: A
Mathematics
You might also like to view...
Determine whether the statement is true or false.For any odd natural number n: If you square the nth term of the Lucas sequence and add 2 you will obtain the (2n)th term of the Lucas sequence.
A. True B. False
Mathematics
Evaluate the expressing using a unit circle or state that the quantity is undefined. All angles are in radians.sin 
A. 
B. - 
C. 
D. - 
Mathematics
Factor completely. If the polynomial is prime, then state this as your answer.9x2 + 6xy - 8y2
A. (9x + 4y)(x - 2y) B. (3x + 4y)(3x - 2y) C. (3x - 4y)(3x + 2y) D. prime
Mathematics
Write the form of the partial fraction decomposition of the rational expression. It is not necessary to solve for the constants.
A. 
+ 
B. 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
Mathematics