Solve the problem.A college student wants to select one foreign language course from among four possible courses, one math course from among seven possible courses, and one economics course from among five possible courses. In how many different ways can she select the three courses?
Fill in the blank(s) with the appropriate word(s).
140
Mathematics
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Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = -2x2, [0, 4], midpoint
A. 
B. 
C. 
D. 
Mathematics
Give the interval where the function increases or decreases, as requested.f(x) = -3x2 + 2decreases
A. [2/3, ?) B. (0, ?) C. (0, -?) D. (-?, 2/3)
Mathematics
Plot the two points given by the ordered pairs.A(2, 3), B(6, -6)
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression.16001/2
A. 40 B. 80 C. 160 D. 20
Mathematics