Write an equivalent expression. Use a commutative law.3 + xy

A. 3 + x + y
B. 3xy, or 3yx
C. xy + 3, or 3 + yx
D. 3(1 + xy)


Answer: C

Mathematics

You might also like to view...

Given the set sketched on the number line, identify the type of interval (open, closed, half-open, open infinite, closed infinite), write the set using set-builder notation, and write the set using interval notation.

A. closed interval; {x|-3 ? x ? 2}; [-3, 2] B. half-open interval; {x|-3 ? x < 2}; [-3, 2) C. open interval; {x| -3 < x < 2}; (-3, 2) D. half-open interval; {x|-3 < x ? 2}; (-3, 2]

Mathematics

The following system does not have a unique solution. Solve the system.

A. inconsistent system, no solution
B. x = 0, y = -8, z = 0
C. x = - , y = , z = 1
D. infinitely many solutions of the form x = - z, y = -8 - z, z = z

Mathematics

Perform the indicated matrix operations.Let A =  and B = . Find 2A + 3B.

A.
B.
C.
D.

Mathematics

Write the ordered pair corresponding to point I. 

A.
B.
C.
D.
E.

Mathematics