Solve the problem.A square plywood platform has a perimeter which is 6 times the length of a side, decreased by 8. Find the length of a side.
A. 2
B. 4
C. 1
D. 6
Answer: B
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Calculate the area of the surface S.S is the portion of the paraboloid z = 2x2 + 2y2 that lies between z = 1 and z = 2.
A. 
B. 
C. 
D. 
Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438 B. 0.487 C. 0.91 D. 0.856
Graph the given function. Identify the vertex and the intercepts.y = - x2 - 2x - 1
A. Vertex: (-1, 0)
x-intercept: -1
y-intercept: -1
B. Vertex: (1, 0)
x-intercept: 1
y-intercept: 1
C. Vertex: (1, 0)
x-intercept: 1
y-intercept: -1
D. Vertex: (-1, 0)
x-intercept: -1
y-intercept: 1
Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
+ 