Find the center, foci, and vertices of the ellipse.25x2 + 9y2 = 225
A. center at (0, 0)
foci at (0, -5) and (0, 5)
vertices at (0, -25), (0, 25)
B. center at (0, 0)
foci at (- 4, 0) and (4, 0)
vertices at (-5, 0), (5, 0)
C. center at (0, 0)
foci at (0, 5) and (3, 0)
vertices at (0, 25) and (9, 0)
D. center at (0, 0)
foci at (0, - 4) and (0, 4)
vertices at (0, -5), (0, 5)
Answer: D
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Write the whole number in words.483
A. four thousand, eight hundred thirty B. four hundred thirty-eight C. four thousand, eighty-three D. four hundred eighty-three
Solve the problem. Round to the nearest tenth when necessary.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 = 7 m
A. 29.8 m B. 5.5 m C. 119 m D. 10.9 m
Solve the problem.It is recommended that a woman who is pregnant should exercise such that her heart rate does not exceed 140 beats per minute. Use absolute value notation to write an expression that describes the difference between the heart rate achieved by each of the following pregnant women and the recommended maximum heart rate. Then evaluate that expression.(i) Abigail: 123 beats per minute(ii) Mathilda: 146 beats per minute
A. (i) Abigail: 123 - 140 = -17
(i) Mathilda: 146 - 140 = 6
B. (i) Abigail: 
= -17
(ii) Mathilda: 
= -6
C. (i) Abigail: 
= 17
(ii) Mathilda: 
= 6
D. (i) Abigail: 
= 263
(ii) Mathilda: 
= 286
Graph the function.f(x) = -1 + ex
A. 
B. 
C. 
D. 