For the given polar equation, write an equivalent rectangular equation.r = 10 sin ?
A. 
= 10x
B. x2 + y2 = 10x
C. x2 + y2 = 10y
D. 
= 10y
Answer: C
Mathematics
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Solve the problem.A tunnel is in the shape of a parabola. The maximum height is 29 m and it is 19 m wide at the base. What is the vertical clearance 2 m from the edge of the tunnel? 
A. 18.1 m B. 10.9 m C. 27.6 m D. 1.4 m
Mathematics
Solve the problem.A ball is dropped from a height of 70 feet. On each bounce, it bounces to 86% of its previous height. How high does it get after the 8th bounce? (Round to the nearest hundredth, if necessary.)
A. 500 feet B. 350.39 feet C. 24.35 feet D. 20.95 feet
Mathematics
Solve the quadratic equation by completing the square.x2 - 8x = 15
A. {4 ± 
}
B. {8 ± 
}
C. {-4 ± 
}
D. {4 ± 
}
Mathematics
Find the quotient, and write in lowest terms, if necessary.
÷ 
A. 
B. 
C. 
D. 
Mathematics