Which one is the right answer?

The Very First Triangle is the 30 -60 -90 Degree Triangle

Step-by-step explanation:

you can find the measure of any of the three sides, simply by knowing the measure of at least one side in the triangle. The hypotenuse is equal to twice the length of the shorter leg, which is the side across from the 30 degree angle.

* Which means this triangle is a 30° - 60° - 90°.

* Hopefully this helps:) Mark me the brainliest:)

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!