The pair of triangles is similar. Find the missing length.
A. 24
B. 0.9375
C. 240
D. 9.375
Answer: A
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) = -2x - 1, [0, 2], left-hand endpoint
A. 
B. 
C. 
D. 
Mathematics
Solve by elimination.-6x + 6y = -112x - 12y = 2
A. No solution B. Infinite number of solutions C. (-6, 6) D. (6, -6)
Mathematics
Use the figure to find the exact value of the trigonometric function.
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?
cos 2?
?
A. ?
B. ?
C. 
D. ?
E. ?
Mathematics
Find the first three terms of the sequence whose nth term is given.
?
?
A. 
, 
, 
B. 
, 
, 
C. ?
, 
, 
D. ?
, 
, 
E. ?
, 
, 
Mathematics