Solve the problem.Which of the lines in the picture are lines of symmetry of the given figure?
A. Only m
B. No reflection symmetry
C. l, m and n
D. l and n
Answer: A
Mathematics
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Compute r''(t).r(t) = (8 cos t)i + (7 sin t)j
A. r''(t) = (8 sin t)i + (7 cos t)j B. r''(t) = (-8 cos t)i + (-7 sin t)j C. r''(t) = (-8 sin t)i + (-7 cos t)j D. r''(t) = (8 cos t)i + (7 sin t)j
Mathematics
Determine if the series converges or diverges. If the series converges, find its sum.
A. converges; 
B. converges; 
C. converges; 
D. diverges
Mathematics
Graph the function.f(x) = 3x4 - x3 + 5x2 + 2x + 4
A. 
B. 
C. 
D. 
Mathematics
Change the sign. (Find the opposite, or additive inverse.) -9
A. -9
B. 
C. 
D. 9
Mathematics