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.
I honestly do not know this seems to me to be a trick question
Answer:
x = 4.167
Step-by-step explanation:
8x - 14 = 2x + 11 add 14 to 14
8x = 2x + 25 subtract 2x to 2x and 8x
6x = 25 divide by 6
x= 4.167 repeating
X=1
because you would add two to the other side and have 2x=2 divide by 2 and you would be left with x=1
