Solve the problem.A ladder that is 15 feet long is 9 feet from the base of a wall. How far up the wall does the ladder reach?
A. 12 ft
B. 3
ft
C. 144 ft
D. 
ft
Answer: A
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Evaluate the integral by making a substitution and then using a table of integrals.
A. ln 
+ sin t + C
B. ln 
- sin t + C
C. ln 
- sin t + C
D. ln 
+ cos t + C
Solve the problem.Estimate the area of the surface generated by revolving the curve y = 2x2, 0 ? x ? 3 about the x-axis.Use Simpson's Rule with n = 6.
A. 1007.254 B. 1024.885 C. 1021.107 D. 996.028
Which of the following NCTM Standards documents was published first?
a. Principles and Standards for School Mathematics b. Curriculum and Evaluation Standards for School Mathematics c. Assessment Standards for School Mathematics d. Professional Standards for Teaching Mathematics
The graph of an ellipse is given. Find the standard form of the equation of the ellipse. 
A. 
- y2 = 1
B. x2 + 
= 1
C. 
+ y2 = 1
D. 
+ y2 = 1