Solve the problem.A piece of heavy equipment has two 8-foot metal arms that make a V with the horizontal plane and form an angle of 116° at their base. A contractor wants to put a chain from the top of one arm to the top of the other, for safety. How long must the chain be?
A. ? 4.24 ft
B. ? 6.78 ft
C. ? 13.57 ft
D. ? 8.48 ft
Answer: C
Mathematics
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Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 4csc x, y = 0, x = 
, x = 
A. 16? B. 8? C. 48? D. 32?
Mathematics
Which set of parametric equations represents the following line or conic?Use x = h+ a sec q and y = k + b tan q.
Hyperbola: vertices ( 2, -4 ), ( 10, -4 )
foci ( -2, -4 ) , ( 14, -4 )
a. 
b. 
c. 
d. 
e. 
Mathematics
Perform the operations indicated.-23 + 5 + (-15) + (-1)
A. -4 B. -34 C. 12 D. -44
Mathematics
y² = 12x
Find the focus.
Mathematics