Express the number in exponential form.2.49(cos 28.2° + j sin 28.2° )
A. 28.2e2.49j
B. 2.49e28.2j
C. 2.49e0.492j
D. 0.492e2.49j
Answer: C
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- 4 = 
A. {-9} B. {9} C. {9, -9} D. no solution
Solve the problem.A basketball fieldhouse seats 15,000. Courtside seats sell for $10, endzone for $7, and balcony for $4. Total for a sell-out is $84,000. If half the courtside and balcony and all endzone seats are sold, the total is $49,000. How many of each type are there?
A. 4,000 courtside 3,000 endzone 8,000 balcony B. 3,000 courtside 2,000 endzone 10,000 balcony C. 3,200 courtside 1,800 endzone 10,000 balcony
Rotate the axes so that the new equation contains no xy-term. Graph the new equation.xy +16 = 0
A. 
B. 
Solve the problem.For the functions f(x) = 
and g(x) = 
, find all real values of x where 
A. -4 B. 10 C. 0 D. no real solution