Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = x2 - 3x - 9
A. maximum; - 
B. minimum; 
C. maximum; 
D. minimum; - 
Answer: D
Mathematics
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Find the polar coordinates, 
and 
, of the point given in Cartesian coordinates.(
, -
)
A. 
B. (
C. 
D. 
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Find the average value of the function f over the given region.f(x, y) = e4x over the square 0 ? x ? 
, 0 ? y ? 
.
A. 2e - 1
B. e - 1
C. 
D. 
Mathematics
Estimate the answer to the problem.A mobile library has 1029 books in its collection. If there are 21 shelves in the library, then how many books, on average, are stacked on each shelf?
A. 55 B. 60 C. 50 D. 46
Mathematics
Determine if the given function y = f(x) is a solution of the accompanying differential equation.y = 
dtx2y' + xy = 
e6x
A. Yes B. No
Mathematics