Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.Evaluate 
by writing the integrand as an integral.
A. 
ln 
B. 
ln 
C. 
ln 
D. ln 
Mathematics
Perform the indicated operations and simplify the result so there are no quotients.
- 1
A. 0 B. - sec2? C. 1 D. 1 - sin ?
Mathematics
Use the properties of parallel lines to solve the problem.Line p is parallel to line q. If ?8 = 45°, find the measure of each angle.
A. ?2, ?4, ?6 all measure 45°; ?1, ?3, ?5, ?7 all measure 145° B. ?2, ?4, ?6 all measure 45°; ?1, ?3, ?5, ?7 all measure 45° C. ?2, ?4, ?6 all measure 45°; ?1, ?3, ?5, ?7 all measure 135° D. ?5, ?6, ?7 all measure 45°; ?1, ?2, ?3, ?4 all measure 135°
Mathematics
Use the Pythagorean theorem to find the length of the unknown side of the right triangle. Give an exact answer.
A. 49
B. 49
C. 7
D. 14
Mathematics