Solve the problem.The annual precipitation for one city is normally distributed with a mean of 329 inches and a standard deviation of 2.6 inches. Find the probability that a randomly selected year will have more than 323.8 inches of rain. Express the probability as a decimal.
A. 0.975
B. 0.84
C. 0.95
D. 0.998
Answer: A
Mathematics
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Find the area.Find the area under y = 
in the first quadrant.
A. 10?
B. 20?
C. 
?
D. 5?
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If you have two right triangles, ? ABC and ?LMN , and you know AB?LM and BC? MN. What theorem would you use to prove ?ABC ? ?LMN?
Mathematics
List four equivalent forms for the rational expression.- 
A. 
, 
, 
, 
B. 
, 
, 
, 
C. 
, 
, 
, 
D. 
, 
, 
, 
Mathematics
Solve the investment problem.Roberto invested some money at 7%, and then invested $3000 more than twice this amount at 12%. His total annual income from the two investments was $4700. How much was invested at 12%?
A. $31,000 B. $9000 C. $3100 D. $28,000
Mathematics