Convert as indicated. Round to the nearest tenth of a degree, if necessary.For the production of a special product a substance must be heated to 680°F. Find this temperature in degrees Celsius.

A. 360°C
B. 1230.4°C
C. 1256°C
D. 374.2°C


Answer: A

Mathematics

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A. -j, 1 + , 1 - 
B. -j, -2 + , -2 - 
C. -j, 2 + 2, 2 - 2
D. -j, 2 + , 2 - 

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A.

B.

C.

D.

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A.
B.
C.
D.

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Solve the problem.Find the equation for the tangent plane to the surface    at the point  

A. 2x + y + 33z = 36 B. 40x - 14y - z = 33 C. 40x - 14y - z = 24 D. 2x + y + 33z = 1

Mathematics