One solution of the differential equation 
is 
. A second linearly independent solution is
Select the correct answer.
?
A. 
B. 
C. 
D. 
E. 
Answer: A
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Place parentheses, if needed, to turn this into a true statement.8 - 10 - 9 + 3 = 10
A. 8 - (10 - 9) + 3 = 10 B. No parentheses needed C. 8 + 10 - (9 + 3) = 10 D. (8 - 10) - 9 + 3 = 10
Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.x2 + 4x + 4 = 0
A. Two different real-number solutions B. Two different imaginary-number solutions C. One real solution
Solve the problem using the vector form v = 
[(cos ?)i + (sin ?)j].A 150-lb sign is hanging from the end of a hinged boom, supported by a cable inclined at 40° with the horizontal. Find the tension in the cable and the compression in the boom rounded to the nearest pound. 
A. Cable: 179-lb tension; boom: 233-lb compression B. Cable: 126-lb tension; boom: 196-lb compression C. Cable: 196-lb tension; boom: 126-lb compression D. Cable: 233-lb tension; boom 179-lb compression
Solve.The perimeter of a rectangle is 26 inches. The area of the rectangle is 40 square inches. What are its dimensions?
A. 4 inches by 7 inches B. 5 inches by 8 inches C. 4 inches by 9 inches D. 6 inches by 7 inches