Solve the problem.In recent years, many states have passed laws against smoking in public buildings. The total number of states N that have passed a no smoking in public buildings law, t years after 1981 is given by the function, N(t) = 
. How many states had passed the law in 1981?
A. 1.316
B. 0
C. 0.263
D. 2.632
Answer: D
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Find the indicated quantity.Find the moment of inertia of a square plate of side a, with respect to one side, in terms of m, the mass of the area.
A. 
B. 
C. 
D. 
Find the exact value of the expression using the provided information.Find cos(s + t) given that sin s = - 
, with s in quadrant IV, and 
with t in quadrant II.
A. 
B. 
C. 
D. - 
Solve the problem.The energy E (measured in joules) released by an earthquake of magnitude M on the Richter scale 
is given by the equation 
. Suppose an earthquake registers 6.3 on the Richter scale. Let I0 = 1. What is the intensity of the earthquake?
A. I = 1013.85 B. I = 6.310 C. I = 106.3 D. I = 13.8510
The function represents the rate of flow of money in dollars per year. Assume a 10-year period and find the present value.f(x) = 3000x - 100x2 at 7% compounded continuously
A. $365,037.29 B. $115,298.44 C. $17,174.14 D. $75,483.18