Solve the problem.Given csc ? = 2 , use trigonometric identities to find the exact value of sec2 ?.
A. 
B. 
C. 
D. 
Answer: D
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Use the known graph of y = ln x to graph the equation.f(x) = ln x + 3 
A. 
B. 
C. 
D. 
Solve the problem. Round to the nearest tenth of a percent unless otherwise noted. Enrollment in a business seminar increased from 63 people to 83 people. What was the percent increase?
A. 31.7% B. 75.9% C. 68.3% D. 24.1%
Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. Contains (3, 6); perpendicular to the line y = -9
A. y = 6 B. x = 6 C. y = 3 D. x = 3
Solve the problem using matrices.Jerry has three pieces of string. The total length is 107 cm. The sum of the two longer pieces is 89 cm. The middle piece is twice as long as the shortest piece. What are the lengths of the three pieces?
A. 18 cm; 36 cm; 53 cm B. 9 cm; 18 cm; 80 cm C. No solution D. 18 cm; 53 cm; 63 cm