Question

If a line segment is 10 inches long, the segment bisector makes two 5 inch long segments.

True

False

Answer 1

@Gdeinward

Answer 2

ah we meet again

Answer 3

what do you think?

Answer 4

I think true

Answer 5

That is correct. GOOD JOB

Answer 6

Okay ty

A segment bisector intersects a segment at its midpoint.

True

False


true?

Answer 7

TRUE.
GOOD JOB

Answer 8

The distance on the number line from 5 to 12 equals 3x – 2. What is the value of x?

Answer 9

Can you post it a little differently? I dont understand

Answer 10

that is the question. there is no graphs or anything

Answer 11

I guess you should subtract 5 from 12 and solve for x. So 7=3x-2

Answer 12

so 9=3x
x = 3? I dunno

Answer 13

So you're not positive about it?

Answer 14

I think thats right what do you think @mhchen

Answer 15

This question is extremely hard, give me a minute to think it through.

Answer 16

Sarcastic much?

Answer 17

So we are given that "the distance from 5 to 12" is equal to "3x-2" and we are trying to find the value of x.
Let A be the sentence "the distance from 5 to 12"
Let B be the sentence "3x-2"
then we can construct
A=B
Then "then distance from 5 to 12" = "3x-2"
By the definition of distance, the distance between 2 values, a and b, is |a-b|, which is equivalent to |b-a|
Therefore the distance from 5 to 12 is |5-12| = |-7| = 7
Thus
7 = 3x - 2
By the additive property of equality,
7+2 = 3x - 2 + 2
Then
9 = 3x
By the multiplicative property of equality
(1/3)9=(1/3)3x
Then
3 = x
Hence, our solution, x = 3.

Answer 18

thank you

Answer 19

?

Answer 20

Did you set -3x+1 = 2 - (-2)?

Answer 21

that would be x=-1

Answer 22

ye

Answer 23

3x+2x = 120 right?

Answer 24

Why are we adding?

Answer 25

so this is gonna be 3x+2x=125?

Answer 26

Because ABD + DBC = ABC right?
that's why we add

Answer 27

and yes for the 2nd question

Answer 28

okay

Answer 29

?

Answer 30

put them equal to each other?

Answer 31

I mean add?

Answer 32

You know that a straight line is 180 degrees right?

Answer 33

Yes so it will be
6x+120=180?

Answer 34

yes

Answer 35

put them equal to each other?

Answer 36

?

Answer 37

yeah

Answer 38

If lines are perpendicular, what do you know about the angles at which they intersect?

Answer 39

@Vocaloid

Answer 40

Perpendicular lines just form a right angle

Answer 41

Correct

Answer 42

what about when they intersect

Answer 43

There isn't enough information to answer that

I'm assuming "If lines are perpendicular, what do you know about the angles at which they intersect?" refers only to perpendicular lines

Answer 44

Yes but im not getting the question to answer it

Answer 45

I'm confused on what you mean

I think the question is only asking about the measure of angles when the intersect perpendicularly (unless this is a whole separate question)

Answer 46

No I just don't know how to answer the question

Answer 47

Oh

You can just define what perpendicular lines are

Perpendicular lines are lines that always intersect at a 90º angle

Answer 48

Oh okay got it

Answer 49

If two lines are perpendicular and they intersect at an angle that measures 5x – 12, what is the value of x?

Answer 50

Well we know that their angle measure is 90º

Just set it equal to 90 and solve for x

\(5x-12=90\)