Lets say figure 1 (triangle) has 3 units, as each side is 1 unit. figure 2, which has 5 units (2 more triangles are connected to figure 1). figure 3 has 7 units (2 more triangles are also added).

the question asks: write an expression, using the variable n, that could be used to determine the perimeter of the nth figure. use the expression to determine the perimeter of the 50th figure.

what are ur choices?

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation: