Find the average value of the function f over the given region.f(x, y) = 6x + 3y over the rectangle 0 ? x ? 5, 0 ? y ? 9.
A.
B. 15
C.
D.
Answer: D
Mathematics
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Give a verbal statement equivalent to the given inequality involving the number x.x < 6 or x ? 16
A. x is less than or equal to 6, or x is greater than or equal to 16. B. x is less than 6 and x is greater than or equal to 16. C. x is greater than 6 and less than or equal to 16. D. x is less than 6, or x is greater than or equal to 16.
Mathematics
Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-5, 8)} B. {(-4, 7)} C. {(4, 8)} D. no solution; ?
Mathematics
Find any numbers for which the rational expression is undefined.
A. x = 5
B. x = , x = -
C. x = 20
D. none
Mathematics
Tell whether the number below is divisible by .
A. no B. yes
Mathematics