Solve the equation by completing the square.9x2 + 36x + 20 = 0
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Calculate, accurate to four decimal places.
dx
A. 4.9345 B. 0.0345 C. 2.6345 D. 0.4345
Mathematics
Solve the problem.A part used in manufacturing is shown in the figure. If the upper and lower sections are parallel, what is the angle between the diagonal and the upper section?
39°
A. 39° B. 129° C. 51° D. 141°
Mathematics
Perform the matrix operation.Let A = 
and B = 
. Find 3A + 4B.
A. 
B. 
C. 
D. 
Mathematics
Tell whether the given rational expression is proper or improper.
A. improper B. proper
Mathematics