Solve the problem.Which of the lines in the picture are lines of symmetry of the given figure?
A. Only m
B. m and o
C. l and n
D. l, m, n and o
Answer: B
Mathematics
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Show that the function is a solution of the wave equation.w(x, t) = ex - ct
A. No B. Yes
Mathematics
Find the perimeter. Use 3.14 for ?.
A. 27.7 m B. 43.4 m C. 21.7 m D. 37.4 m
Mathematics
Write the number in scientific notation.A company produces 732,000 small appliances in one year.
A. 7.32 × 105 B. 7.32 × 106 C. 73.2 × 104 D. 7.32 × 10-5
Mathematics
Find the average value of the function f over the given region.f(x, y) = 
; R = {(x, y): 1 ? x ? 4, 1 ? y ? 4}
A. 
2
B. 
2
C. 
D. 
Mathematics