Determine the vertex of the parabola.y = 4x2 - 16x + 13
A. (-2, 3)
B. (-3, 2)
C. (3, -2)
D. (2, -3)
Answer: D
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Make a bar graph to represent the data.Construct a vertical bar graph for the relative frequencies given.
What will be an ideal response?
Solve the problem.If a resistor and inductor are connected in series to a battery of emf ?, the current in the circuit is given by 
where ? is the time constant of the circuit, R is the resistance, and t is the time since the circuit was closed. Find the expression for dI/dt.
A. - 
et/?
B. 
e-t/?
C. 
D. 
e-t/?
Solve the equation using the quadratic formula.8x2 + 5x - 3 = 0
A. 
, -1
B. 
, 1
C. 
, 0
D. 
, -1
Solve the problem.Find the area of the shaded portion ( see illustration) of a circle of radius 25 cm, formed by a central angle of 
Round your answer to the nearest square cm. 
[Hint: Subtract the area of the triangle from the area of the sector of the circle to obtain the area of the shaded portion.]
Fill in the blank(s) with the appropriate word(s).