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 = 3 m
A. 9.9 m
B. 8.3 m
C. 3.1 m
D. 69 m
Answer: C
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Solve.In an electrical circuit, the voltage is equal to the product of the current, measured in amperes (A), and the resistance of the circuit, measured in ohms (?) 
Suppose the current in a circuit is 
and the resistance is 
Find the voltage. Round to the nearest hundredth, if necessary.
A. -1.84 V B. -44.1 V C. 4.1 V D. -0.54 V
Identify the conic that the polar equation represents. Also, give the position of the directrix.r = 
A. hyperbola, directrix perpendicular to the polar axis 3 right of the pole B. ellipse, directrix perpendicular to the polar axis 3 left of the pole C. hyperbola, directrix perpendicular to the polar axis 3 left of the pole D. ellipse, directrix perpendicular to the polar axis 3 right of the pole
Find the logarithm.log11(11)
A. 1
B. 
C. 0
D. 11
Write the number without exponents.3.0191 × 10-7
A. 0.000000030191 B. -301,190,000 C. 0.00000030191 D. 0.0000030191