Solve the problem.The intensity I of light decreases from its value I0 as it passes a distance x through a medium. Given that 
where k is a constant depending on the medium, find x for 
and 
A. 2.690 cm
B. 0.598 cm
C. 1.83 cm
D. -2.690 cm
Answer: A
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Provide an appropriate response.Perform the operations and express in scientific notation: 
3
A. 15.625 × 10-9 B. 7.5 × 10-9 C. 7.5 × 100 D. 1.5625 × 10-8
Solve the problem.Volatility refers to:
A. the amount of uncertainty or risk about changes in a security's value B. the likelihood that a security's value will only decrease in value C. a security's value as compared to an industry benchmark D. the likelihood that a security's value will only increase in value
E ( X )
The probability density function of X is f (x) = 4/x5 over [1, x= ?). Compute the quantity.
Assume that 80% of all children who are exposed to chicken pox contract the disease. If 1225 children are exposed to chicken pox, the probability that more than 945 of them will contract the disease is approximately the area under the standard normal curve
A. to the right -2.46. B. to the right of -2.50. C. to the right -0.18. D. to the left 2.46. E. none of these