Solve the problem.An airplane is cruising at an altitude of 23,760 feet. What is the plane's altitude in miles?
A. 5.5 mi
B. 4.5 mi
C. 3.5 mi
D. 9 mi
Answer: B
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Translate the problem to an equation. Do not solve.A number minus 3 equals 5.
A. 3 - x = 5 B. x - 3 = 5 C. x = 3 - 5
Answer appropriately.A microcomputer company analyzed its sales and profits and discovered a linear relationship between how many units were sold each week and the profits for that week. No matter how many microcomputers were sold, a fixed expense of $19,000 was incurred. The profit associated with each unit sold was $280. The total profit was the per-machine profits less the fixed expense. Express the weekly total profit as a function t(x) where x is the number of units sold each week.
A. t(x) = 
x + 19,000
B. t(x) = 280x + 19,000
C. t(x) = 280x - 19,000
D. t(x) = 19,000x - 280
Find the foci of the ellipse.36x2 + y2 - 288x + 540 = 0
A. (4, 
), (4, -
)
B. (4 + 
, 0), (4 -
, 0)
C. (6, 
), (6, -
)
D. (4, 6), (4, -6)
Sketch the graph of the line by locating the second point with the rise-and-run method.Through (-3, -10), m is undefined.
A. 
B. 
C. 
D. 