Solve the equation.4-x = 

A.
B. {4}
C.
D. {-4}


Answer: B

Mathematics

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Solve the problem.The floor plan of a building is shown in the figure below. Is it possible to start in one of the rooms of the building, walk through each door exactly once, and end up in a different room from the one you started in? (Consider the outside a "room".) Justify your answer.

What will be an ideal response?

Mathematics

Rationalize the denominator.

A.
B.
C.
D.

Mathematics

Solve.Normal body temperature is 98.6°F. Ellen's temperature is   How many degrees above normal body temperature is this?

A. 3.7° B. 3.8° C. 2.8° D. 2.7°

Mathematics

Find the solution set of the equation. If the equation has no solution write ? and if the equation is an identity so state. = 

A. {2} B. {0} C. {-4} D. {4}

Mathematics