Select the correct answers. if sides bd and dc have the same length, what is the length of side bc?

Hello! The answer is 4. We know this by:

Because BD and DC are equal we only need to find the length of BD and plug it into the pythagorean theory. (a²+b²=c² where c is the hypotenuse.)

So we find BD by using the pythagorean theory. BA = a and AD=b and BD=c. Plug it all in and we get 1²+1²=BD². We get 2=BD, now we need to take the square root of 2 to get 1.414213562.

Now that we know BD we also know DC so we can plug them into to this: BD² +DC²=BC².

1.414213562²+1.414213562²=4 and the square root of that is 2.

I hope this helped!

both equations and proportions are better.

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend   $ 135.85 total

store = spend $80.07 total