The function given below gives the cost to manufacture x items. Estimate (using 
) the instantaneous rate of change of the cost at the production level 
.
?
?
Enter your answer as a number without the units rounded to the nearest tenth.
Fill in the blank(s) with the appropriate word(s).
4.9
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Provide an appropriate response.What effect does a 270° rotation about the origin have on the equation of the hyperbola (x2/a2) - (y2/b2) = 1? Give the new equation.
A. 
- 
= 1
B. 
+ 
= 1
C. 
- 
= 1
D. 
- 
= 1
Solve the system of equations.x + 4y + 5z = 31 3y + 5z = 28 z = 5
A. (1, 2, 5) B. (2, 5, 1) C. (2, 1, 5) D. (5, 1, 2)
Fill in the blank with one of the words or phrases listed below. Not all choices will be used and some choices may be used more than once.
The expression 5
and 7
are examples of 
.
A. like radicals B. rationalizing the denominator C. difference of two squares D. radicand
Graph the hyperbola.36y2 = 4x2 + 144
A. 
B. 
C. 
D. 