Fill in the missing factor.7x2 - 40x - 63 = (7x + 9)( )
A. x + 7
B. x - 7
C. 7x - 7
D. 7x + 54
Answer: B
Mathematics
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The period T (in seconds) of a pendulum is 
, where L is the length of the pendulum (in feet). Find the period of a pendulum whose length is 10.0000 feet.
?
A. 1.010 sec B. 3.511 sec C. 5.511 sec D. 4.511sec E. 4.011 sec
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A card is drawn randomly from a standard 52-card deck. Find the probability of the specified event. The card is a 2, 3, or 7.
A. 
B. 
C. 
D. 
Mathematics
Write the complex number shown below in trigonometric form.
a. 
b. 
c. 
d. 
e. 
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Using the figure below, sketch a graph of the given vector. [The graphs in the answer choices are drawn to the same scale as the graph below.]
a. 
b. 
c. 
d. 
e. none of these
Mathematics