Find the average value of the function f over the given region.f(x, y) = 7x + 5y over the region bounded by the coordinate axes and the lines 
and 
.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Which of the following is related to the tension inherent in the metaphor, "A plane is a chalkboard that extends infinitely in all directions"?
a. Chalkboards and planes are both flat objects b. Planes are frequently represented in textbooks with trapezoidal drawings c. Chalkboards have thickness, but planes do not d. Chalkboards are outmoded pedagogical devices
Mathematics
Find the exact value of the expression.cot (-1215°)
A. -1
B. 
C. 
D. 1
Mathematics
Use the graph of a known basic function and horizontal shifts to sketch the function.f(x) = |x + 1|
A. 
B. 
C. 
D. 
Mathematics
Find the difference quotient of g.g(x) = 7x3
A. 21x2 + 3xh + 3h2 B. 21x2 + xh + h2 C. 21x2 + 21xh + 7h2 D. 21x2
Mathematics