Solve the problem.An airplane leaves an airport and flies due west 170 miles and then 250 miles in the direction 220°20'. Assuming the earth is flat, how far is the plane from the airport at this time (to the nearest mile)?
A. 395 mi
B. 358 mi
C. 385 mi
D. 368 mi
Answer: A
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Solve.
+ 4 = 8
A. {- 
, 
}
B. {1, - 3}
C. {
, - 
}
D. ?
A statement Sn about the positive integers is given. Write statements Sk and Sk+1, simplifying Sk+1 completely.Sn: 12 + 42 + 72 + . . . + (3n - 2)2 = 
What will be an ideal response?
Subtract.
- 
A. - 2
B. - 2
C. 1
D. - 4
Rotate the axes so that the new equation contains no xy-term. Discuss the new equation.24xy - 7y2 + 36 = 0
A. ? = 36.9°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ±2)
B. ? = 36.9°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ±3)
C. ? = 36.9°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ± 
)
D. ? = 53.1°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ±2)