Solve the problem.By how many orders of magnitude do two earthquakes differ if one is rated 1.5 on the Richter scale and the other is rated 3.9?
A. 1.9
B. 4.8
C. 2.4
D. 1.2
Answer: C
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Find the domain of the given function f and find where it is increasing and decreasing, and also where it is concave upward and where it is concave downward. Identify all extreme values and points of inflection. Then sketch the graph of y = f(x). f(x) = x3-x
What will be an ideal response?
Write as a percent. Round to the nearest hundredth of a percent when necessary.
A. 4.25 % B. 2.35 % C. 23.53 % D. 42.5 %
Solve the problem. Round to the nearest tenth, if necessary.If an object is thrown upward with an initial velocity of 
, its height after t sec is given by 
. Find the maximum height attained by the object. (The object will attain maximum height exactly at the halfway point in terms of the time t, where t = 0 is at the beginning of the object's flight, and the final time is when the object hits the ground.)
A. 144 ft B. 80 ft C. 96 ft D. 128 ft
Solve the problem.A pendulum bob swings through an arc 40 centimeters long on its first swing. For each swing thereafter, it swings only 95% as far as on the previous swing. How far will it swing altogether before coming to a complete stop?
A. 
cm
B. 
cm
C. 
cm
D. 800 cm