Find the area of the figure. Use 3.14 for ?. Round to hundredths if necessary.Isosceles trapezoid
A. 216 sq. ft
B. 108 sq. ft
C. 81 sq. ft
D. 35 sq. ft
Answer: B
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Use simple probability to complete the exercises.Use the spinner below to answer the question. Assume that it is equally probable that the pointer will land on any one of the five numbered spaces. If the pointer lands on a borderline, spin again. Find the probability that the arrow will land on 1 or 5. 
A. 1
B. 3
C. 
D. 
Find the derivative of y with respect to x, t, or ?, as appropriate.y = 8e?(sin ? - cos ?)
A. 0 B. 16e?(sin ? - cos ?) C. 8e?(sin ? - cos ?) + 8e? D. 16e? sin ?
Solve the problem.Suppose the cost per ton, y, to build an oil platform of x thousand tons is approximated by 
What is the cost per ton for 
A. $25.00 B. $481.65 C. $12,600.00 D. $13,125.00
Write an inequality associated with the given interval notation.(-6, 6)
A. -6 < x < 6 B. -6 ? x ? 6 C. x > -6 or x < 6 D. x < -6 or x > 6