Perform the indicated operation. Simplify, if possible.
- 
+ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the value of d2y/dx2 at the point defined by the given value of t.x = tan t, y = 3 sec t, t = 
A. - 
B. - 
C. 3
D. 
Mathematics
Solve.?6x - 9? ? 8
A. 
? x ? 
B. x ? 
or x ? 
C. x ? 
D. x ? - 
or x ? 8
Mathematics
Solve the problem.True or false, given a system of two linear equations in two variables, if the graphs of the two equations coincide, then the system is independent.
A. True B. False
Mathematics
Solve the problem. Round your answer to the nearest tenth.If $2500 is invested in an account that pays interest compounded continuously, how long will it take to grow to $5200 at 5%?
A. 15.8 years B. 14.6 years C. 13.9 years D. 5.5 years
Mathematics