Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin.
?
Directrix: x = 3
?
A. 
B. 
C. 
D. 
E. 
Answer: E
Mathematics
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Evaluate the integral.
dx
A. - 
cot2 x - 
ln 
+ C
B. 
cot4 x sec x + C
C. 
cot4 x + C
D. 
cot2 x + ln 
+ C
Mathematics
Graph on the number line, and express in interval notation.The set of all real numbers less than or equal to 0.
A. (-?, 0]
B. (-?, 0)
C. [0, ?)
D. (0, ?)
Mathematics
Perform the indicated operation.Given f(x) = 
and g(x) = 
, find f(x) ÷ g(x).
A. x + 7
B. 
C. 
D. 
Mathematics
Answer the question or complete the sentence to make a true statement.When the absolute value of a positive number equals the absolute value of a negative number, the sum of the positive and the negative number is .
A. Positive B. Negative C. Zero D. Not known
Mathematics