Solve the problem.A piece of land is shaped like a right triangle. Two people start at the right angle of the triangle at the same time, and walk at the same speed along different legs of the triangle. If the area formed by the positions of the two people and their starting point (the right angle) is changing at 
then how fast are the people moving when they are 
from the right angle? (Round your answer to two decimal places.)
A. 5.00 m/s
B. 2.00 m/s
C. 0.50 m/s
D. 1.00 m/s
Answer: D
Mathematics
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Solve the problem.Find the area bounded by y(4 + 9x2) = 3, x = 0, y = 0, and x = 3.
A. sin-1
B. 3 sin-1
C. 
tan-1
D. 
tan-1
Mathematics
Integrate the function.
dt
A. - 
+ C
B. - 
+ C
C. - 
+ C
D. - 
+ C
Mathematics
Use the Laws of Exponents to simplify. Write the answer with positive exponents. All variables are nonzero.(-5x4y-5)(3x-1y)
A. 
B. 
C. 
D. -15x3y6
Mathematics
Find the mean of the random variable x associated with the probability density function over the indicated interval.
?
; 
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics