please help with this, I don't really understand it and I need to turn in my homework by tonight! thanks in advance

Explained below

Step-by-step explanation:

Hi! Do you know the similar triangle rules?

I will prove one for you and you can try the rest

ΔCBD ~ ΔABC proof:

st                              | r

1) ΔABC is right Δ    | Given

2) CD is alt to hyp   | Given

3) m∠C = 90°           | def right Δ

4) m∠CDB = 90°      | def alt

5) m∠B = m∠B         | reflexive property (more triangles share ∠B)

6) ΔCBD ~ ΔABC     | AA (since two angles are equal, the two triangles are similar)

We do not need to prove all three angles as similar since if two corresponding angles of two triangles are congruent, the third has to be equal (since the total sum of angles is 180° in a triangle)

You can translate the statement reasoning into a paragraph

I hope this helps! If not, let me know and I will try and explain further :)

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8