Plot the point whose polar coordinates are given.(4, ?/2)

A.

B.

C.

D.


Answer: D

Mathematics

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Solve the problem.Find the half-life of the radioactive element radium, assuming that its decay constant is  with time measured in years.

A. 1400 years B. 1600 years C. 800 years D. 2308 years

Mathematics

Solve the problem. Round to the nearest cent.You intend to create a college fund for your baby. If you can get an interest rate of 5.5% compounded monthly and want the fund to have a value of $177,122 after 18 years, how much should you deposit each month?

A. $9462.31 B. $481.74 C. $529.91 D. $409.48

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Solve the equation. -  = 9

A.
B. {45}
C. {81}
D. {45

Mathematics

Find the average value of    over the given region. over the rectangular solid in the first octant bounded by the coordinate planes and the planes  

A. 8 B. 16 C. 64 D. 128

Mathematics