Solve the problem.Arches in the shapes of parabolas are often used in construction. Find the equation of a parabolic arc that is 24 feet high at its highest point and 26 feet wide at the base, as illustrated in the figure. Place the origin at the midpoint of the base. 
A. y = -x2 + 26
B. y = - 
x2 + 24
C. y = 
x2 + 24
D. y = -x2 + 24
Answer: B
Mathematics
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Obtain the Cartesian equation of the curve by eliminating the parameter.x = 9 sin2 t, y = 9 cos2 t; 0 ? t ? 2?
A. 
+ 
= 1
B. x + y = 9
C. x2 + y2 = 9
D. 9x + 9y = 1
Mathematics
Use a CAS integration utility to evaluate the triple integral of the given function over the specified solid region.
over the rectangular solid 
, 
, 
A. - 1,299,360 B. - 1,949,040 C. - 1,732,480 D. - 1,039,488
Mathematics
Find the center and radius of the sphere.3x2 + 3y2 + 3z2 - 2x + 2y = 9
A. C
, a = 
B. C
, a = 
C. C
, a = 
D. C
, a = 
Mathematics
Perform the indicated operation.
- 
A. 
B. 
C. - 
D. 
Mathematics