Solve the problem.An arch in the form of a semiellipse is 52 ft wide at the base and has a height of 20 ft. How wide is the arch at a height of 12 ft above the base?
A. 17.7 ft
B. 20.8 ft
C. 35.5 ft
D. 41.6 ft
Answer: D
Mathematics
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A. 
B. 
C. 
D. 
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Write the sum using summation notation, assuming the suggested pattern continues.-3 + 6 + 15 + 24 + ... + 132
A. 
B. 
C. 
D. 
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Find the exact value of the expression if ? = 45°. Do not use a calculator.f(?) = cos ?Find 5f(?).
A. 
B. - 
C. 
D. - 
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The polar coordinates of a point are given. Find the rectangular coordinates of the point.(-5, -180°)
A. (0, -5) B. (0, 5) C. (5, 0) D. (-5, 0)
Mathematics