Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.x2 + 4x + 4 = 0
A. Two different real-number solutions
B. Two different imaginary-number solutions
C. One real solution
Answer: C
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Find the derivative of the function at the given point in the direction of A.
A = 12i - 5j
A. 
B. 
C. 
D. 
Which of the following physical situations would best be modeled by the graph?
A. The length y of a shadow cast by a tree between sunrise and noon, where t is the angle of elevation of the sun.
B. The length y of a shadow cast by a horizontal flagpole on a vertical wall between sunrise and noon, where t is the angle shown.
C. The number of hours y of sunlight during month t, where t = 1 corresponds to January.
D. The monthly average ocean temperature y in degrees Fahrenheit during month t, where t = 1 corresponds to January.
Determine whether the statement is true or false. If it is true, explain why it is true. If it is false, give an example to show why it is false.
?
The function 
is a solution of the differential equation 
.
What will be an ideal response?
Graph the region described by the inequality.x > 4 
A. 
B. 
C. 
D. 