Solve.Given the area and length of a rectangle, the width can be found using the formula 
Suppose the area of a rectangle is described by 
square feet and the length is described by 
feet. Find an expression for the width.
A. 
feet
B. 
feet
C. 
feet
D. 
feet
Answer: C
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Use the Montonicity Theorem to find where the function is increasing and where it is decreasing.h(t) = cos t, 0 ? t ? 2?
A. Increasing on 
, decreasing on 
? 
B. Increasing on [1, 2], decreasing on [0, 1]
C. Increasing on [0, ?], decreasing on [?, 2?]
D. Increasing on [?, 2?], decreasing on [0, ?]
The graph of a function f is given. Use the graph to answer the question. 
Find the numbers, if any, at which f has a local maximum. What are the local maxima?
A. f has a local minimum at x = 5 and 3.9; the local minimum at 5 is -8; the local minimum at 3.9 is 2.2 B. f has a local minimum at x = -8 and 2.2; the local minimum at -8 is 5; the local minimum at 2.2 is 3.9 C. f has a local maximum at x = 5 and 3.9; the local maximum at 5 is -8; the local maximum at 3.9 is 2.2 D. f has a local maximum at x = -8 and 2.2; the local maximum at -8 is 5; the local maximum at 2.2 is 3.9
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(8 + 4i)2
A. 80 - 64i B. 48 - 64i C. 48 + 64i D. 80 + 64i
Use a graphical method to solve the system. Give x- and y-coordinates correct to the nearest hundredth.y = ex + 3x2 - 4y2 = 11
A. (2.75, 1.28) B. (2.75, -1.28) C. (1.04, -0.14), (3.52, -1.69) D. (-3.52, 0.59)