Answer:
3
Step-by-step explanation:
Pythagorean Theorem: a²+b²=c²
You can fill in the numbers you know: a²+4²=5²
(Hypotenuse must be side c)
Square those numbers and you have: a²+16=25
Subtract 16 from both sides: a²=9
Square root both sides and you get: a=3
Are you trying to simplify the equation? if so, combine the like terms on each side first. -3x + 3 = -2 + 2x. Then simplify, -5x = -5. And solve, x = 1
Answer:
If AB = CD, then CD = AB. symmetric property
If MN = XY , and XY = AB , then MN = AB. transitive property
Segment CD is congruent to segment CD reflexive property
Step-by-step explanation:
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