Question

The waiter places a bowl of soup in front of Abbey. In a counterclockwise direction, she passes the soup to Kai who then passes it to Haifa. Which two rotations about the center of the table describe passing the soup?

Answer 1

first 80° and then 120°
first 40° and then 60°
first 60° and then 90°
first 72° and then 108°

Answer 2

please help!

Answer 3

How many people are at the table?

Answer 4

13

Answer 5

no 12

Answer 6

close, 14 actually

Answer 7

oops my bad

Answer 8

but u skipped numbers?

Answer 9

I jumped from 10 to 12 for some strange reason

Answer 10

no 12

Answer 11

sorry I see where I added the extra number

Answer 12

ok yeah, 12

Answer 13

ok lol

Answer 14

anyways, divide 360 degrees by 12

360/12 = 30

Answer 15

going from person to person means that you go 30 degrees along the outer arc

Answer 16

so going from Abbey to Kai means we go 2 spots

(2 spots)*(30 degrees per spot) = 60 degree rotation

Answer 17

yeah but the next spot i over 180? if its 30 degree each spot

Answer 18

going from Kai to Haifa means we move 3 spots

(3 spots)*(30 degrees per spot) = 90 degree rotation

Answer 19

its 2 spots and the 5 spots?

Answer 20

ohh i see lol

Answer 21

yeah it's starting from Kai on the second part (and not Abbey)

Answer 22

Okay do u know this one?
Every _____ tessellates.

pentagon
octagon
triangle
decagon

Answer 23

the answer is given at the top of this page

http://gabrielattar.weebly.com/uploads/4/3/2/2/43226303/12.6_tessaletions_notes_.pdf

where it says "Theorem 12-6"

Answer 24

yay i got it right then

Answer 25

congrats on getting it right

Answer 26

A taxicab starts at (1, -2) on the grid and picks up a passenger. The taxicab travels a total of 16 blocks, and then drops the passenger off. Which composition of two translations could describe the taxicab’s final position?

(x, y) > (x + 4, y - 3), and then (x, y) >(x - 9, y + 1).
(x, y) > (x - 4, y + 3), and then (x, y) > (x + 6, y - 1).
(x, y) > (x - 3, y + 4), and then (x, y) > (x + 8, y - 1). My answer
(x, y) > (x - 3, y + 4), and then (x, y) > (x + 7, y - 1).

Answer 27

Thanks (:

Answer 28

good, choice C is the only one where the total distance traveled is 16 blocks

Answer 29

So im right!?

Answer 30

yep

Answer 31

Yes! (:

Answer 32

Nice job

Answer 33

In the diagram, triangle ECD is a _____ of triangle ABC across line p.

Answer 34

translation
glide reflection
rotation
reflection (my guess)

Answer 35

let me think

Answer 36

ok

Answer 37

this is what I get when I reflect ABC over line p

Answer 38

the reflection does not line up with ECD

so reflection doesn't work

I couldn't get glide reflection to work either

Answer 39

translation doesn't work either

the only thing left is rotation. The only issue is that I'm not sure how they're rotating it. This problem is just odd

Answer 40

if line p were along BC, then a glide reflection would work

but that's not the case since line p is through EC

Answer 41

hmm

Answer 42

I think the authors messed up

Answer 43

All i can guess is relfection

Answer 44

A blueprint for a fence has a scale of 1:40. The fence in the blueprint is 6 in. What is the length of the actual fence?
20 feet
240 feet (or this one)
20 inches (my answer)
72 feet

Answer 45

@jim_thompson5910

Answer 46

"has a scale of 1:40" means that you multiply the smaller dimension (6 inches) by 40 to get the corresponding longer dimension

then convert to feet

Answer 47

Yeah.
6*40=240
240/12 = 20
right?

Answer 48

looks good

Answer 49

ok