Solve the problem.While traveling at a constant speed in a car, the centripetal acceleration passengers feel while the car is turning is inversely proportional to the radius of the turn. If the passengers feel an acceleration of 20 feet per second per second when the radius of the turn is 100 feet, find the acceleration the passengers feel when the radius of the turn is 400 feet.
A. 8 ft/sec2
B. 6 ft/sec2
C. 7 ft/sec2
D. 5 ft/sec2
Answer: D
Mathematics
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Write a fraction to represent the shaded area of the figure.
A. 
B. 
C. 
D. 
Mathematics
Determine whether the statement is true or false. If it is true, explain why it is true. If it is false, give an example to show why it is false.
?
If 
and 
, then f must have a critical point at (a, b).
?
A. False. In relative extremum 
and 
.
B. True. It follows from definition.
Mathematics
Verify the identity.
= cot 
What will be an ideal response?
Mathematics
Rewrite the expression as the logarithm of a single quantity.2 log x + 
log y - 
log z
A. log 
B. log 
C. log 
D. log 
Mathematics