Chapter lines and angles math

Mathematics

1 answer:

Tcecarenko [31]2 years ago

5 0

Answer:

1. No

2. 90 and 180

3. 9

4. 150 as consecutive angles

5. 73

6. x+x+2x+2x = 180

6x = 180

x = 30

7. 3x+2y+24=180

3x+2y +24=180

3x+2y=180-24

3×32 +2y= 156

y=60/2

y=30

when, y=24

3x+2y+24=180

3x+2×24-180-24

3x=-156-48

x=108/3

x=34.444

You might be interested in

In how many ways can a person enter a room that has three doors and leave it by (a) a different door? (b) any door? How do i do

White raven [17]

Part (a)

Label the doors A, B, C.

If a person goes through door A, then they have 2 choices (B or C) to pick as an exit. Similarly, if they go through door B, then they have 2 choices for an exit (A or C). Finally, if they go through door C, then they have 2 choices for an exit (A or B).

We have 3 choices for the entrance, and 2 choices for the exit.

So overall, 3*2 = 6 different combinations are possible.

Those 6 combos are

AB, AC, BA, BC, CA, CB

<h3>Answer: 6</h3>

=============================================

Part (b)

This is effectively the same as part (a), but we can now re-use the entrance door. For any door we enter, we have 3 choices to pick from for the exit. There are 3 doors, so 3 entrances and 3 exits, meaning 3*3 = 9 different combinations.

Those 9 combos are

AA, AB, AC, BA, BB, BC, CA, CB, CC

<h3>Answer: 9</h3>

5 0

3 years ago

What is 4/9 rounded to it's closest estimate

quester [9]

Answer:

1/2

Step-by-step explanation:

4/9 is .444

1/2 is .5