Evaluate.25 + (18 ? 14)
A. 602
B. 277
C. 464
D. 57
Answer: B
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Find the unit vector that has the same direction as the vector v.v = -4i - 3j
A. u = -20i - 15j
B. u = 
i + 
j
C. u = - 
i - 
j
D. u = - 
i - 
j
Graph f(x). State the domain, range, and horizontal asymptote of the function.f(x) = 
x + 2 - 1
A. Domain: (-?, ?), range: (2, ?)
Horizontal asymptote: y = 2
B. Domain: (-?, ?), range: (-2, ?)
Horizontal asymptote: y = -2
C. Domain: (-?, ?), range: (1, ?)
Horizontal asymptote: y = 1
D. Domain: (-?, ?), range: (-1, ?)
Horizontal asymptote: y = -1
Simplify. Be sure to rationalize all denominators. Assume that all variables represent positive real numbers.
A. 2
B. 3
C. 
D. 
A variable voltage in an electrical circuit is given by 
, where t is in seconds. Find the values of t when the voltage V equals 
.
A. 
B. 
C. 
D. 
E. 