Question

can someone check my answer?

Answer 1

@Bob

Answer 2

@mhchen

Answer 3

the lines make up the following triangle

Answer 4

is this a right triangle

Answer 5

no

Answer 6

so your answer is ?

Answer 7

false.

Answer 8

bingo

Answer 9

this one seems simple enough, so i'm confident my answer here is correct, D

Answer 10

but this question right here stumps me, if you can help

Answer 11

@Bob

Answer 12

1 question at a time

Answer 13

Do you know how to solve
\[2x-4 = x + 7\]

Answer 14

Because an equilateral triangle has the same length for each side,

\[y = 2x - 4 = x + 7\]

Answer 15

11

Answer 16

so is that the answer?

Answer 17

Not the answer to the problem, but that is what x is right

Answer 18

You know that x = 11, now you just need to find y.

Answer 19

so it's equilateral, which means all the sides add up to 180, right? do i just divide or subtract by 11, or the remaining sides?

Answer 20

All angles add up to 180. All sides are the same.

Answer 21

You know that x = 11.

And that all sides are the same.

so y = 2x - 4 = x + 7

You can just plug x =11 in that equation

y = 2(11) - 4 = (11) + 7

Answer 22

Because one side is y, another side is 2x - 4, and the last side is x + 7.

If all the sides are the same, they equal each other.

Now you can solve for y.

Answer 23

so how do i solve it? what equation?

Answer 24

do i divide 180 by 11?

Answer 25

the y = 2x - 4 equation

or y = x + 7 equation.

They're both the same.

Answer 26

No you don't do anything with 180. 180 is for angles of the triangles, but you're doing the sides of the triangles.

Answer 27

so 2x11 is 22, - 4 = 18

Answer 28

YES

Answer 29

You solved for 'y' !