Find the flux of the curl of field F through the shell S.F = (3y + 3)i - 2xj + (ez - 3)k; S: r(r, ?) = 5 sin ? cos ?i + 5 sin ? sin ?j + 5 cos ?k, 0 ? ? ? 2? and 0 ? ? ? 
A. 250
B. 125?
C. -125?
D. -250?
Answer: C
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In a strange mix-up, several people (none of whom spoke the same language) needed to pool their resources to survive the scorching desert heat. Eric had 55 bottles of water; Dimetrius had 
bottles; Sparticus had 
bottles. How many bottles of water did they have all together?
?
__________ bottles
Fill in the blank(s) with the appropriate word(s).
Solve the problem.In a Psychology class, the students were tested at the end of the course on a final exam. Then they were retested with an equivalent test at subsequent time intervals. Their average scores after t months are given in the table.
Using a graphing utility, fit a logarithmic function y = a + b ln x to the data. Using the function you found, estimate how long will it take for the test scores to fall below 84%. Express your answer to the nearest month.
A. 12 months B. 8 months C. 20 months D. 10 months
Decide whether the problem is an equation or an expression.7(2x + 6) - 2(4x - 7)
A. Expression B. Equation
Solve the problem.Find the present value of the deposit. $3000 at 4% compounded monthly for 2 years. Round to the nearest cent.
A. $3241.43 B. $2769.72 C. $3249.43 D. $2777.72