Answer:
(a) -5z +3y +14x
Step-by-step explanation:
Given a triangle with side lengths of (6x+10y), (8x-9z), and (4z-7y) centimeters, you want an expression for the perimeter in centimeters.
Perimeter
The perimeter of a plane geometric figure is the sum of its side lengths.
P = (6x+10y) + (8x-9z) + (4z-7y) . . . . . centimeters
P = (6 +8)x +(10 -7)y +(-9+4)z . . . . . add coefficients of like terms
P = -5z +3y +14x . . . . . . . . . . . . . . simplify
The perimeter expression for the triangle is -5z +3y +14x centimeters.
