Solve the problem.Find the average value of f(x, y, z) = 3x + 8y + 5 over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
.
A. 
B. 140
C. 104
D. 68
Answer: D
Mathematics
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Solve.Janet has a total of $3503 in her checking account. If she writes a check for each of the items below, how much money will be left in her account?phone$ 48rent$750car$429
A. $2275 B. $2276 C. $1227 D. $2266
Mathematics
Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.(x2y5)7/3
A. x14/3y35/3 B. x35/3y14/3 C. x6/7y15/7 D. x13/3y22/3
Mathematics
Use a 3D grapher to graph the function. Then estimate any relative extrema.f(x, y) = (x + 2y + 1) 2
A. Relative minimum = 1 B. No relative extrema C. Relative minimum = 0 D. Relative maximum = 4
Mathematics
For the function f, use composition of functions to show that f-1 is as given.Let 
. Show that 
What will be an ideal response?
Mathematics