For the curve r(t), find an equation for the indicated plane at the given value of t.r(t) = (cosh t)i + (sinh t)j + tk; rectifying plane at t = 0.
A. x - y = -1
B. x - y = 1
C. x = 1
D. x = -1
Answer: C
Mathematics
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Evaluate the integral.
A. - 
csc 7t cot 7t - 
ln
+ 
+ C
B. - 
csc 7t cot 7t + 
ln
+ C
C. - 
csc 7t cot 7t - 
ln
+ C
D. 
csc 7t cot2 7t - 
ln
+ C
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Provide an appropriate response.A lathe which cost $700 was sold for $626. What was the percent of decrease in the price of the lathe? (nearest whole percent)
Fill in the blank(s) with the appropriate word(s).
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Multiply.
A. 
B. 
C. 
D. 
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Compute.|-2|
A. 0 B. 2 C. -2 D. 4
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