Use an Euler diagram to determine whether the argument is valid or invalid.Some cars are considered sporty.Some cars are safe at high speeds.? Some sports cars are safe at high speeds.
A. Invalid
B. Valid
Answer: A
Mathematics
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Find the derivative.s = 4t2 + 9t + 4
A. 8t2 + 9 B. 8t + 9 C. 4t2 + 9 D. 4t + 9
Mathematics
Solve the problem.Suppose G is a graph with 39 vertices and 38 edges. Then
A. G is either a tree or it is not connected. B. G must be a tree. C. G cannot have any circuits. D. G cannot have more than one path joining any two vertices. E. none of these
Mathematics
Use the Remainder Theorem to find the remainder.f(x) = x4 + 4x3 - 4x2 + 8x - 41 is divided by x - 2
A. -89
B. 
C. 7
D. -41
Mathematics
Solve the problem.Suppose that the manufacturing cost of a precision instrument is approximated by 
where x is the cost of materials and y is the cost of labor. Find 
A. 108 B. 354 C. 144 D. 1044
Mathematics