Set up an equation that can be used to solve the problem. Solve the equation and answer the question asked. A couch sells for $920. Instead of paying the total amount at the time of purchase, the same couch can be bought by paying $300 down and $60 a month for 12 months. How much is saved by paying the total amount at the time of purchase?
A. $10
B. $100
C. $200
D. $760
Answer: B
Mathematics
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Solve the problem.Evaluate 
Rwhere R is the interior of the ellipsoid 
. Hint: Let 
and then convert to spherical coordinates.
A. 35?2
B. 35?
C. 
?
D. 
?2
Mathematics
Solve and check.
= 
A. x = 
B. x = 
C. x = 
D. x = 
Mathematics
Solve the problem.In a survey of 55 hospital patients, 24 said they were satisfied with the nursing care, 26 said they were satisfied with the medical treatment, and 6 said they were satisfied with both. How many patients were satisfied with neither? How many were satisfied with only the medical treatment?
A. 11; 20 B. 17; 26 C. 18; 20 D. 11; 26
Mathematics
Solve. You will have to square both sides of the equation twice to eliminate all radicals.
+ 
= 4
A. 2, -2 B. -2 C. 0 D. no real solution
Mathematics