Solve the problem.How many arrangements of answers are possible in a multiple-choice test with 10 questions, each of which has 3 possible answers?
A. 720
B. 59,049
C. 604,800
D. 120
Answer: B
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) = cos x + 1, [0, 2?], midpoint
A. 
B. 
C. 
D. 
Mathematics
Solve the equations.3x2 = 39
A. ±
B. ±13
C. 14
D. 19.5
Mathematics
Solve the equation.-6.4m - 1.9 + 0.2m = -2.1 - 6.2m + 0.2
A. 0 B. 0.2 C. all real numbers D. no solution
Mathematics
Evaluate.
+ 
? 
A. 
B. 
C. 
D. 
Mathematics