In 1965 the economist F.M. Scherer modeled the number, n, of patens produced by a firm as a function of the size, s, of the firm (measured in annual sales in millions of dollars). He came up with the following equation based on a study of 448 large firms. Round your answer to two decimal places.
?
?
Find 
.
?
A. -12.3
B. -14.3
C. 31.46
D. -17.3
E. -9.3
Answer: B
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What number should be added to the binomial x²+8x in order to make it a perfect square trinomial?
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