Solve. Write a mixed numeral for the answer.A small company sells stock for 8
dollars per share. How much will 240 shares cost?
A. 28
dollars
B. 240 dollars
C. 2010 dollars
D. 243 dollars
Answer: C
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Find the Cartesian coordinates of the given point.
A. (-10
, -10)
B. (-10, -10
)
C. (10
, -10)
D. (10, -10
)
Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = 5 tan t, y = 4 sec t; 0 ? t ? 2?
A. 
- 
= 1; -? < x < ?
B. 
+ 
= 1; -? < x < ?
C. y = x2 - 9; -3 ? x ? 3
D. y = 4
; -? < x < ?
Find a cofunction with the same value as the given expression.tan 
A. tan 
B. cot 
C. csc 
D. cot 
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