Find an equation for the line tangent to the curve at the point defined by the given value of t.x = 7e-t, y = 6et, t = 0
A. y - 6 = - 
(x - 7)
B. y - 6 = - 
(ex - 7)
C. y - 7 = - 
(x - 6)
D. y - 6 = - 
(x - 7)
Answer: A
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Solve the problem.Find the foci and asymptotes of the following hyperbola:25y2 - x2 = 25
A. Foci: (
, 0), (-
, 0); Asymptotes: y = 
x, y = - 
x
B. Foci: (0, 
), (0, -
); Asymptotes: y = 
x, y = - 
x
C. Foci: (0, 26), (0, -26); Asymptotes: y = 5x, y = -5x
D. Foci: (0, 
), (0, -
); Asymptotes: y = 5x, y = -5x
Find the unknown length in the right triangle. Give an exact answer and a decimal approximation rounded to three decimal places.
A. c = 
km; c ? 6.000 km
B. c = 
km; c = 208.0 km
C. c = 
km; c ? 20.396 km
D. c = 416 km
Convert the equation given in polar form into rectangular form.r = 2
A. y2 = 4 B. x2 + y2 = 4 C. x = 2 D. y = 2
Perform the indicated operation and write your answer with positive integer exponents.
A. n + m B. -n - m C. -n + m D. n - m