Solve the equation on the interval 0 ? ? < 2?.
sin ? - cos ? = -1
A. 
, 
B. 0, 
C. 
, 
D. 0, 
Answer: B
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Ivan wishes to determine which antenna he should purchase for his home. The TV store has supplied him with the information: Range in Miles VHF UHF Model Price 30 20 A $40 45 35 B $50 60 40 C $60 75 55 D $70 ? Ivan wishes to receive Channel 17 (VHF) that is located 22 mi east and 41 mi north of his home and Channel 38 (UHF) that is located 24 mi south and 44 mi west of his home. Which model will allow him to receive both channels at the least cost? (Assume that the terrain between Ivan's home and both broadcasting stations is flat.)
A. Model A B. Model C C. Model D D. Model B
Write the polar equation in terms of x and y.r = 
A. 4x + y = 5 B. 4x + y = 25 C. x + 4y = 5 D. x + 4y = 25
Let f be a function from a set X to a set Y. Define precisely (but concisely) what it means for f to be one-to-one.
What will be an ideal response?
Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.{5n2}
A. Geometric; r = 
B. Geometric; r = 5
C. Arithmetic; d = 5
D. Neither