Solve.While traveling at a constant speed in a car, the centrifugal acceleration passengers feel while the car is turning is inversely proportional to the radius of the turn. If the passengers feel an acceleration of 9 feet per second per second when the radius of the turn is 40 feet, find the acceleration the passengers feel when the radius of the turn is 120 feet.
A. 5 feet per second per second
B. 4 feet per second per second
C. 3 feet per second per second
D. 6 feet per second per second
Answer: C
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Solve the problem.The table below shows the population of a city in various years. Use the data to draw a graph of the population as a function of time. Use the graph to estimate when the population reached 6.4 million 
A. 2005 B. 2004 C. 2007 D. 2006
We can encode a message by assigning the numbers 1 - 26 to the letters a - z of the alphabet, respectively, and assigning 27 to a blank space. To further encode a message, we can use an encoding matrix A to convert these numbers into new pairs or triples of numbers. Use matrix A to encode the given message.Use the matrix A = 
to encode the message "Thank you" into triples of numbers. Combine the triples of numbers to give the encoded numerical message.
What will be an ideal response?
Evaluate.63 + 6-3
A. 1
B. 216
C. 0
D. -216
Determine whether the pair of lines is parallel, perpendicular, or neither.y = 4x + 9y = -4x - 6
A. parallel B. perpendicular C. neither