A triangle with vertices at (x1, y1), (x2, y2), and (x3, y3) has area equal to the absolute value of D, where 
. Use this information to solve the problem.Use D to determine whether the three points are collinear. (-2, -9), (4, 9), (2, 5)
A. The points are collinear.
B. The points are not collinear.
Answer: B
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Use identities to simplify the expression.tan2 x csc2 x
A. tan2 x B. cos3 x C. sin x D. sec2 x
Solve the motion problem.A cyclist bikes at a constant speed for 24 miles. He then returns home at the same speed but takes a different route. His return trip takes one hour longer and is 29 miles. Find his speed.
A. 4 miles per hour B. 7 miles per hour C. 6 miles per hour D. 5 miles per hour
Solve the problem.The graph shows the total cost y (in dollars) of owning and operating a minivan where x is the number of miles driven.
Find the slope of the line passing through the two points shown and use your answer to complete this statement: For the range of miles shown, the cost of owning and operating a minivan increases by approximately 
per 
style="vertical-align: -10.0px;" /> driven. A. $0.18 per mile B. $20.00 per mile C. $5.67 per mile D. $0.25 per mile
Solve.A nuclear cooling tower cross section is a hyperbola having a diameter of 50 ft at the center. The distance between the two foci is 96 ft. What is the equation for the hyperbola?
A. 
- 
= 5
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1