Express the statement as an equation involving the indicated variables.The perimeter P of a rectangle is twice the sum of its length l and its width w.
A. P = lw
B. P = 2lw
C. P = l + w
D. P = 2(l + w)
Answer: D
Mathematics
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Decide whether or not the ordered pair is a solution to the equation.x + 4 = 0; (-4, 2)
A. No B. Yes
Mathematics
Write a matrix equation equivalent to the system of equations.-2x + 3z = 2 3y + 8z = 252x - 2y + 3z = 4
A. 
= 
B. 
=
C. 
=
D.
  =  |
Mathematics
Decide if the given number is a solution to the given equation.p - 1 = 12; 13
A. No B. Yes
Mathematics
Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. Cannot be simplified
B. 
C. 
D. 
Mathematics