Perform the indicated operation


Answer: 7

Mathematics

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What number is 90% of 400? 

A. 1,800 B. 360 C. 36,000 D. 460 E. 18,000

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Use the limit definition of the partial derivative to compute the indicated partial derivative of the function at the specified point.Find  at the point (-6, 6, -1): f(x, y, z) = 4x2y + 3y2 + 7z

What will be an ideal response?

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Find the exact value of the expression.cos 40° cos 20° - sin 40° sin 20°

A.
B.
C.
D.

Mathematics

Determine whether the given ordered pair is a solution of the system.(3, -2)x + y = 1x - y = 5

A. solution B. not a solution

Mathematics