A 100-gon P1 is drawn in the Cartesian plane. The sum of the x-coordinates of the 100 vertices equals 2009. The midpoints of the sides of P1 form a second 100-gon, P2. Finally, the midpoints of the sides of P2 form a third 100-gon, P3. Find the sum of the x-coordinates of the vertices of P3.

step-by-step explanation:

10.50 + taxes which added up to 11.50

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

answer: 1, 3 and 5 are correct

step-by-step explanation:

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation: