Use Gaussian elimination or Gauss-Jordan elimination to solve the problem.A basketball fieldhouse seats 15,000. Courtside seats sell for $8, end zone for $7, and balcony for 
Total for a sell-out is 
If half the courtside and balcony and all end zone seats are sold, ticket sales total 
. How many of each type of seat are there?
A. 4000 courtside
3000 end zone
8000 balcony
B. 3200 courtside
1800 end zone
10,000 balcony
C. 3000 courtside
2000 end zone
10,000 balcony
D. Cannot be determined
Answer: C
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Solve the problem.License plates are made using 3 letters followed by 3 digits. How many plates can be made if repetition of letters and digits is allowed?
A. 17,576,000 B. 1,757,600 C. 1,000,000 D. 308,915,776
Match the given equation with one of the graphs.
- 
= 1
A. 
B. 
C. 
D. 
State the degree and leading coefficient of the polynomial function.f(x) = -13x4 - 6x3 - 7x2 + 9
A. Degree: 10; leading coefficient: -13 B. Degree: 4; leading coefficient: -13 C. Degree: 3; leading coefficient: -13 D. Degree: -13; leading coefficient: -7
Find the polar form of the complex number.5
A. 5(cos 0 + i sin 0)
B. 5(cos 
+ i sin 
)
C. 5(cos 
+ i sin 
)
D. 5(cos ? + i sin ?)