Solve.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 = 8 m
A. 11.1 m
B. 51 m
C. 123 m
D. 5 m
Answer: A
Mathematics
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 4 cos t + cos 4t, y = 4 sin t - sin 4t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
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Subtract.200 - 290
A. -90 B. 490 C. -490 D. 90
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Use the number line model to illustrate the following operation.
- 
A. 
- 
= 
B. 
- 
= 
C. 
- 
= 
D. 
- 
= 
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Solve the problem.A discount store had monthly sales of $81,400 and spent 12% of it on health insurance. How much was spent on health insurance?
A. $67,833 B. $678,333 C. $97,680 D. $9768
Mathematics