Perform the indicated operation. Simplify the answer when possible.
- 
A. 5
B. 
C. 2
D. 
Answer: B
Mathematics
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Provide an appropriate response.Find an equation of the line tangent to y = xcot x at the point x = 1.
A. y = x cot 1 + 1 + cot 1 B. y = x cot 1 - 1 - cot 1 C. y = x cot 1 + 1 - cot 1 D. y = x cot 1 - 1 + cot 1
Mathematics
Show that the function is a solution of the wave equation.w(x, t) = e-8ct cos -8x
A. Yes B. No
Mathematics
Write the whole number in expanded form.93,647
A. 90,000 + 3000 + 600 + 40 + 7 B. 70,000 + 4000 + 600 + 30 + 9 C. 93,647 D. 9000 + 300 + 60 + 47
Mathematics
Find the eccentricity of the conic section shown in the graph.
A. e = 
B. e = 
C. e = 4
D. e = 1
Mathematics