Find the product.-5ab2(5ab7 - 9b5)

A. -25ab + 45b
B. -25a2b9 - 9b5
C. -25a2b9 + 45b7
D. -25a2b9 + 45ab7


Answer: D

Mathematics

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Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. Contains (6, 7); parallel to the line x = -2

A. y = -2 B. x = 7 C. y = 7 D. x = 6

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Rotate the coordinate axes to eliminate the xy term.7x2 + 6xy + 13y2 = 65

A.  +  = 1
B.  +  = 1
C. y' = 
D.  +  = 1

Mathematics

Find the indicated relative minimum or maximum.Minimum of f(x,y) = x2 + y2 - xy,subject to x - y = 10

A. f(5, -5) = 75 B. f(5, 5) = 25 C. f(1, 2) = 3 D. f(2, -1) = 7

Mathematics

Carry out the operations with decimal forms. Give your answer to three decimal places. ?

Fill in the blank(s) with the appropriate word(s).

Mathematics