Find all values of x (if any) where the tangent line to the graph of the function is horizontal.y = x3 - 3x2 + 1
A. 0
B. 0, 2
C. 2
D. -2, 0, 2
Answer: B
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Write the following in decimal notation.Two thousand five hundred eighty-five and four hundred twenty-five ten-thousandths
A. 2585.00425 B. 2585.425 C. 25,850.0425 D. 2585.0425
Find the unit vector that has the same direction as the vector v.v = -4i - 3j
A. u = - 
i - 
j
B. u = 
i + 
j
C. u = -20i - 15j
D. u = - 
i - 
j
Solve the problem. Round your answer to the nearest tenth.The roof of a building is in the shape of the top half of the hyperbola y2 - 5x2 = 12, where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls. 
a = 6.0 mb = 6.0 m
A. 41.0 m B. 13.9 m C. 192.0 m D. 6.4 m
Solve.The speed of a vehicle is inversely proportional to the time it takes to travel a fixed distance. If a vehicle travels a fixed distance at 45 miles per hour in 50 minutes, how fast must it travel to cover the same distance in 15 minutes?
A. 
miles per hour
B. 
miles per hour
C. 150 miles per hour
D. 
miles per hour