Read and solve the following problem. Then write a paragraph describing the method you used to get your solution. Which problem-solving strategy(s) did you use and why?
Toothpicks can be arranged to form rows of rectangles as shown. How many
toothpicks are required to form a row with 30 rectangles in it?
151
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Find the directrices of the hyperbola.49x2 - 576y2 = 28,224
A. y = ± 
B. x = ± 
C. x = ± 
D. y = ± 
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = (y-x)i + (z-y)j + (z-x)k ; D: the region cut from the solid cylinder x2 + y2 ? 49 by the planes z = 0 and 
A. 98? B. 0 C. -98? D. -98
Calculate the arc length of the indicated portion of the curve r(t).r(t) = (8cos3 9t)j + (8sin3 9t)k; 
? ? t ? 
?
A. 0 B. 12 C. 24 D. 4
Solve the problem.In a sample of 93 widgets, 8 were defective. How many defective widgets would you expect in a sample of 186 widgets?
A. 14 widgets B. 16 widgets C. 19 widgets D. 38 widgets