Translate to an equation and solve. 55 is 125% of what?
A. 440
B. 156.25
C. 15,625
D. 44
Answer: D
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Provide an appropriate response.What form do planes perpendicular to the y-axis have in spherical coordinates?
A. ? = a sin ? sin ? B. ? = a csc ? C. ? = a csc ? csc ? D. ? = a csc ?
Find the function with the given derivative whose graph passes through the point P.r'(?) = 7 - csc2?, P
A. r(?) = 7? - cot? - 
? - 2
B. r(?) = 7? - cot? - 
? + 2
C. r(?) = 7? + cot? - 
? - 1
D. r(?) = 7? + cot? - 
? + 1
Solve the problem.A technician has readings that take 2
minutes each to read and record. How many readings can be completed in 192 minutes?
A. 11 readings B. 72 readings C. 512 readings D. 130 readings
Provide the proper response.It can be shown that an ellipse with foci (c, 0) and (-c, 0) where the sum of the distances from any point 
of the ellipse to the two foci is 2a has equation 
+ 
= 1. Use this result to find an equation of an ellipse with foci (3, 0) and (-3, 0), where the sum of the distances from any point of the ellipse to the two foci is 8.
A. 
+ 
= 1
B. 
+ 
= 1
C. x2 + y2 = 64
D. 
+ 
= 1