Evaluate the definite integral.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: D
Mathematics
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Solve the system of equations
?
Round your answers to two decimal places.
?
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Mathematics
Use the appropriate form of the percentage formula. Round division to the nearest hundredth if necessary.What number is 5
% of 82?
A. 4.26 B. 42.6 C. 426 D. 0.04
Mathematics
Solve the problem.A jet plane traveling at a constant speed goes 1200 miles with the wind, then turns around and travels for 1000 miles against the wind. If the speed of the wind is 50 mph and the total flight took 4 hours, find the speed of the plane.
A. 435 mph B. 525 mph C. 605 mph D. 550 mph
Mathematics
Find an equation for the parabola with vertex at the origin.Through (9, 9), symmetric with respect to the y-axis
A. y = 9x2
B. y = 
x2
C. x = 
y2
D. x = -9y2
Mathematics