<h3><u><em>D. Angle 5 and Angle 3 are Alternate Exterior Angles.</em></u></h3><h3><em>This Statement is false, they are co - interior angles.</em></h3><h3><em>HOPE IT HELPS !!!</em></h3>
Answer:
Step-by-step explanation:
Apply the Pythagorean Theorrem. Find the sum of the squares of the two shortest sides and determine whether this sum equals the square of the longest side:
#19: 5^2 + 12^2 = ? = 13^2
25 + 144 = ? = 169 This is true, so you do have a right triange in #19.
#21: 2^2 + 4^2 = ? = 7^2, or 4 + 16 = ? = 49 This is false. Not a right
triangle.
Apply this same approach (Pythagorean Theorem) to the remaining problems.
2(3x+2)(3x-2) ...hope this helps
probably 1 and 2, I'm only in 6th grade tho so I forgot (love the pfp btw)