Glen says, when someone picks a positive integer, and then writes down a sum of all integers from one to the integer that was picked and then adds all the integers back down to one, the
sum will be the square of the integer that was picked.
For example:
Pick 5, 1+2+3+4+5+4+3+2+1=52
Pick 7, 1+2+3+4+5+6+7+6+5+4+3+2+1=72
Will this always work for any positive integer?
Why?

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 2x^2 = 4x 2) 8 +2x = 2(4x) 3) 2 * 2 = 4 * 2 4) 4x^2 -2x = 0

If /is a line of symmetry, plot the partner points for the ones shown. noch 6 5 4 -3 -2 -1