It can be shown that the area enclosed between the x-axis and one arch of the sine curve is 2. Use this fact to compute the definite integral.
dx
A. 6
B. 3
C. 0
D. 18
Answer: A
Mathematics
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Solve the system.x2 + 2xy + y2 = 9x2 + 2xy - y2 = -9
A. {(0, 3), (0, -3), (6, 3), (6, -3)} B. {(0, 3), (0, -3), (6, 3), (-6, -3)} C. {(0, 3), (0, -3), (-6, 3), (-6, -3)} D. {(0, 3), (0, -3), (-6, 3), (6, -3)}
Mathematics
Convert the equation given in polar form into rectangular form.? = 
A. y = 
x
B. x2 + y2 = 1
C. y = - 
x
D. y = - 
x2
Mathematics
Simplify the root.
A. -5 B. Not a real number C. 25 D. 5
Mathematics
Solve.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 80 seconds are required to make a 5-by-4 enlargement, find the time required for a 6-by-5 enlargement.
A. 120 sec B. 90 sec C. 150 sec D. 180 sec
Mathematics