Use a graphing utility to solve the system of equations. Express the solution rounded to two decimal places.
A. x = 0.64, y = 1.89 or (0.64, 1.89)
B. x = 0.22, y = 0.98 or (0.22, 0.98)
C. x = 1.14, y = 0.81 or (1.14, 0.81)
D. x = 0.48, y = 1.63 or (0.48, 1.63)
Answer: A
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A. 6t2 tanh 
- 4 sech2 
B. 6t2 tanh 
- 2 sech2 
C. 6t2 tanh 
- 4 sech 
D. 6t2 tanh 
+ 4 sech2 
Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = xzi + yzj + k , S is the cap cut from the sphere x2 + y2 + z2 = 9 by the plane 
direction is outward
A. 
?
B. 35?
C. - 
?
D. 
?
Determine the coordinates of the focus and the equation of the directrix of the parabola.y2 = 40x
A. F(10, 0), x = 10 B. F(0, 10), y = -10 C. F(10, 0), x = -10 D. F(10, 10), x = 10
Find the extreme values of the function and where they occur.f(x) = (x + 1)2/3
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