3. which of the following examples demonstrates the relationship between additive
inverses?
a. you take a five-mile train ride and ride five miles in the opposite direction to get
home.
b. you walk for fifteen minutes and then walk another fifteen minutes to get to your
destination.
c. you pay your sister back the money she loaned you.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

3

step-by-step explanation:

what’s the question?

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus