Determine whether the argument is valid or invalid.If Nadine is working tonight, then she will not go skiing.If Nadine is not working tonight or does not go skiing, then she will read a novel.Nadine will not read a novel tonight. Therefore, Nadine is not working tonight.
A. Valid
B. Invalid
Answer: A
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Solve the problem.Translate into the language of a derivative of distance with respect to time. s is the position of the car at time t. The car is slowing down.
A. 
= k, k is a constant
B. 
= 0
C. 
< 0
D. 
> 0
Find 
(x) and state any values that cannot be included in the domain of 
(x).P(x) = x2 + 10x + 16; Q(x) = x + 2
A. x + 2, x ? -8 B. x + 10, x ? 0 C. x + 8, x ? -2 D. x + 8, x ? 2
Solve the system of equations by the addition method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent.-4x + 2y = 68x - 4y = -12
A. (-24, 12) B. Infinitely many solutions, dependent C. No solution, inconsistent D. (12, -24)
Find vectors u and v whose initial and terminal points are given. Determine whether u and v are equivalent.
?
u:
, 
v:
, 
?
A. 
, 
which are equivalent
B. 
,
which are not equivalent
C. ?
,
which are equivalent
D. ?
,
which are equivalent
E. ?
,
which are equivalent