Solve the problem.An arch has the shape of half an ellipse. The equation of the ellipse is 
where x and y are in meters. How wide is the arch across the bottom? 
A. 13 m
B. 18 m
C. 26 m
D. 9 m
Answer: C
Mathematics
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Provide an appropriate response. Name the triangle whose sides measure 18 cm, 22 cm, and 18 cm.
A. scalene B. right C. isosceles D. equilateral
Mathematics
Use an associative property to complete the statement. Do not simplify.3 + (6 + x) = 
A. 6(3 + x) B. (3 + 6)x C. (3 + 6) + x D. 3(6 + x)
Mathematics
Provide an appropriate response.Let A = 
, where e and a are nonzero constants. Find A-1.
A. 
B. 
C. 
D. 
Mathematics
Find a system of inequalities with the given graph.
A. y > -4 x ? 3 B. y > 3 x ? -4 C. y > -4 x ? 3 D. y < -4 x ? 3
Mathematics