First, use front end rounding to estimate each answer. Then find the exact answer.The plane was losing 13 feet in altitude per second. How many feet in altitude was the plane losing in 72 seconds?
A. estimate: 
? 72 = 
feet; exact: 
feet
B. estimate: 
? 70 = -700 feet; exact: -936 feet
C. estimate: 
? 72 = 
feet; exact: 
feet
D. estimate: 
? 70 = 
feet; exact: 
feet
Answer: B
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Solve the problem.A bird flies from its nest 2 km in the direction 1° north of east, where it stops to rest on a tree. It then flies 5 km in the direction 1° south of west and lands atop a telephone pole. With an xy-coordinate system where the origin is the bird's nest, the x-axis points east, and the y-axis points north, at what point is the telephone pole located?
A. (-4.999, -0.08726) B. (2.000, 0.03490) C. (-3.000, -0.05236) D. (-1.621, -1.019)
Solve the problem.Find the 11th term of the following geometric sequence:6, 6
, 12, 12
, . . .
A. 96
B. 192
C. 384
D. 192
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A. x = -6y - 5 B. y = -6x + 5 C. x = -6y + 5 D. y = -6 - 5x
Answer the question.True or False: An equation of the type y = c (c is a constant) produces a line parallel to the 
A. False B. True