Solve the equation.log (4 + x) - log (x - 5) = log 2
A. 
B. {14}
C. {-14}
D. ?
Answer: B
Mathematics
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Find the angle between the given vectors to the nearest tenth of a degree.u = 
, v = 
A. 45° B. 0° C. 180° D. 90°
Mathematics
Determine whether the graph is the graph of a function.
A. Function B. Not a function
Mathematics
Use a calculator to give the real number value. Round the answer to 7 decimal places.y = cos-1(-0.9397)
A. 2.8285740 B. 2.7412723 C. 2.7925484 D. -0.3492063
Mathematics
Evaluate as requested.Given that f(x) = x2 - 3x + 1, find f(1).
A. 3 B. -1 C. -3 D. 5
Mathematics