Use the exponential key to find an approximation to the nearest thousandth.142.8
A. 39.2
B. 1,820,591.2
C. 1618.671
D. 196
Answer: C
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Suppose a wire that is 107 feet long is cut into one piece of length x feet and another of length 
feet. The first piece is bent into a square, and the second is bent into a circle. The total area enclosed is given by
square feet.
A: Make a graph of A versus x. In choosing your viewing window, bear in mind that the formula makes sense only when x is between 0 and 107.B: What is the area at the left-hand endpoint? What physical situation does that represent? Round your answer to two decimal places, if necessary.C: What is the area at the right-hand endpoint? What physical situation does that represent? Round your answer to two decimal places, if necessary.D: How should the wire be used so that the maximum area is enclosed?
What will be an ideal response?
Graph the function.y = -sec x
A. 
B. 
C. 
D. 
Solve the problem.The length ? of a metal rod used in manufacturing cars must not differ from the standard s by more than 0.3 inches. The manufacturing engineers express this as 
Find the limits of ? if the standard s is 20.3.
A. 20.6 ? ? ? 20.9 B. ? ? 20 or ? ? 20.6 C. 20 ? ? ? 20.6 D. ? ? 20.6 or ? ? 20.9
Translate into symbols.Angle x measures 46° more than angle y.
A. ? x = ? y B. ? x = ? y - 46° C. ? y = ? x + 46° D. ? x = ? y + 46°