Solve the problem.Find an equation for the level surface of the function 
that passes through the point (?, ?, 1) .
A. cos 
= 0
B. 
= 2?
C. cos 
= 2?
D. 
= 1
Answer: B
Mathematics
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Subtract.(x3 - 2x2 + 24x) - (5x2 - 6x + 15)
A. x3 + 7x2 - 18x - 15 B. x3 - 7x2 + 18x + 15 C. x3 - 7x2 + 18x - 15 D. x3 - 7x2 + 30x - 15
Mathematics
Solve the exponential equation. Give answers correct to 3 decimal places.
?
?
A. 1.159 B. 0.093 C. 10.714 D. -0.093 E. -0.424
Mathematics
Encode or decode the given message, as requested, numbering the letters of the alphabet 1 through 26 in their usual order.Use the coding matrix A = 
to encode the message CARE.
A. 
B. 
C. 
D. 
Mathematics
Use Gauss-Jordan elimination to find the solution. Write the solution as an ordered triple.2x + y = 0 x - 3y + z = 03x + y - z = 0
A. (0, 0, 0) B. (0, 1, 0) C. (1, -2, -7) D. (1, 0, 0)
Mathematics