Solve the problem.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height h of the outside walls.
a = b = 8 m
A. 17 m
B. 39 m
C. 111 m
D. 10.5 m
Answer: D
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 
for r(t) = (9 sin 2t)i - (8 cos 2t)j + (9 csc 2t)k
A. a
= -36i - 36k
B. a
= -36i + 36k
C. a
= 36i + 36k
D. a
= 32j + 36k
Mathematics
Find the area enclosed by the given curves.y = x3, y = 4x
A. 16 B. 4 C. 8 D. 2
Mathematics
Find the absolute value of the complex number.z = -8 + 8i
A. 128
B. 16
C. 8
D. 4
Mathematics
Determine if the equation represents a function.x = y2 + 4
A. Yes B. No
Mathematics