Question

The legs of an isosceles triangle have lengths x + 1 and -x + 7 . The base has length 3x - 3. What is the length of the base?





A. 4
B. 6
C. 3
D. Cannot be determined

Answer 1

ooh lengths nvm

Answer 2

okay but i am still confused on how you would find this answer

Answer 3

can you solve \[x+1=-x+7\]?

Answer 4

in you can't that is fine, i will show you

Answer 5

no i cant

Answer 6

a) add \(x\) to both sides, get \[2x+1=7\]

Answer 7

can you solve that ?

Answer 8

2x=6 x=3

Answer 9

yes

Answer 10

and the base is \[3x-3\] so put a \(3\) where you see \(x\)

Answer 11

huh

Answer 12

3 (3)-3

Answer 13

yes exactly
what is that number?

Answer 14

9-3
6

Answer 15

bingo

Answer 16

so what answer is it

Answer 17

You have a formula for the length of the base, and you have a value for x.
You calculate the length of the base using this info.

Answer 18

6

Answer 19

sunshine0829
9-3
6

You obtained that result earlier. Why are you asking "so what answer is it?"