Using a calculator, evaluate the expression. Round the answer to four decimal places.sec(arctan 4.839)
A. 0.2024
B. 1.0000
C. 0.4999
D. 4.9412
Answer: D
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Solve for the specified variable.5x + 
= 
for z
A. z = 
B. z = 
C. z = 
D. z = 
Multiply the rational expressions. Simplify, if necessary.- 
? 
A. - 
B. - 
C. - 
D. - 
Solve.10,500 college students were asked to name their favorite sport. Of this group, 
said basketball, 
said soccer, 
said baseball, 
said they had no favorite sport, and the remainder said volleyball. How many named each sport? 
A. Basketball: 3,500 Soccer: 2,100 Baseball: 1,800 Volleyball: 2,575 None: 525 B. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,635 None: 515 C. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,625 None: 525 D. Basketball: 3,500 Soccer: 2,050 Baseball: 1,750 Volleyball: 2,675 None: 525
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 $6, 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. 3000 courtside 2000 end zone 10,000 balcony B. 3200 courtside 1800 end zone 10,000 balcony C. 4000 courtside 3000 end zone 8000 balcony D. Cannot be determined