An earthquake with a period of 
second has an amplitude of 4000µm. Find its measure on the Richter scale.
?
Please enter your answer as a number rounded to one decimal place.
Fill in the blank(s) with the appropriate word(s).
3.9
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Consider the logistic equation. Find the equilibrium solutions. A detailed direction field is not needed. Assume 
and 
P'(t) = 0.05P
A. P = 400 B. P = 0 and P = 800 C. P = 0 and P = 400 D. P = 0 and P = 200
Solve the problem.A gear with a radius of 4 centimeters is turning at 
radians per second. What is the linear velocity at a point on the outer edge of the gear?
A. 36? centimeters per second
B. 
centimeters per second
C. 
centimeters per second
D. 
centimeters per second
Match the property with the example of it.Associative property
A. (1 + 8) + 2 = (8 + 1) + 2 B. (1 + 8) + 2 = 1 + (8 + 1) C. (1 + 8) + 2 = 1 + (8 + 2) D. (1 + 8) + 0 = (1 + 8)
Use a proportion to solve the problem.A bag of fertilizer covers 1000 square feet of lawn. How many bags of fertilizer should be purchased to cover a rectangular lawn 410 feet by 220 feet?
A. 902 bags B. 9020 bags C. 90 bags D. 91 bags