If a regular triangle has a perimeter of 18x + 27 what is an expression for the length of one of its sides

A regular triangle is a triangle with 3 equal sides. A perimeter of a triangle with 3 sides = 3 x length = 3 (length). Since you know that the perimeter is also equal to 18x + 27, therefore,

3 (length) = 18 x + 27

length = (18x + 27) / 3 <-- divided both sides by 3

length = 6x + 9

An expression for the length of one of its sides is 6x + 9.

20335+282=20617

step-by-step explanation:

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0