Find the exact value of y, or state that y is undefined.y = sec-1 (-1)
A. 
B. ?
C. 0
D. 2?
Answer: B
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Solve the problem.A summer camp consists of several lodges, dining rooms and bath houses, represented by the vertices on the graph below. These buildings are linked by gravel pathways whose lengths in yards are also indicated on the graph. The gravel paths become very muddy when it rains, so the camp owners wish to pave certain paths so that it is possible to walk between any two buildings without having to walk on a gravel path. Use Kruskal's algorithm to determine which paths should be covered in order to minimize the total length of paved paths. Also, determine the minimum total length of pathways that must be paved.
What will be an ideal response?
Insert <, >, or = between the pair of numbers to form a true statement.0.123 _____ 0.121
A. = B. > C. <
Simplify the expression. Assume that all variables represent nonnegative real numbers.10
- 
+ x
A. 
(5x2 - 2x + 4y)
B. 
(-5x2 + 2x + 4y)
C. 
(-2x2 + 5x + 10y)
D. 
(2x2 - 5x + 10y)
Solve the equation.2 + log3(2x + 5) - log3 x = 4
A. 
B. 
C. 
D. 