An earthquake has an amplitude of 4,000 micrometers and a period of 0.45 second. Find its measure on the Richter scale. Round to one decimal place, if necessary.
?
A. 9.1
B. 8.3
C. 4
D. 3.6
E. 3.9
Answer: E
Mathematics
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Provide an appropriate response.Is the best buy (lowest cost per unit) always the best value? Give an example when this is not true and explain why.
What will be an ideal response?
Mathematics
Solve the problem.Find the points on the curve x2 + y2 = 2x + 2y where the tangent is parallel to the x-axis.
A. (1, 1), (1, -1)
B. (2, 0), (2, 2)
C. (1, 1 + 
), (1, 1 - 
)
D. (2, 2 + 
), (2, 2 - 
)
Mathematics
Find the inverse of the function.f(x) = e-x + 4
A. f-1(x) = -ln(x - 4) B. f-1(x) = ln(4) - ln(x) C. f-1(x) = ex - 1/4 D. f-1(x) = -ex - 4
Mathematics
Use substitution to determine whether the given ordered pair is a solution of the given equation.(4, 2); 2x + 2y = 12
A. Yes B. No
Mathematics