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Mathematics 42 Online
OpenStudy (anonymous):

FAN AND MEDAL I just need these checked for if they are right or wrong 1) https://i.gyazo.com/38e76fd2b69c4dbeccd6246cb9896097.png I believe this one is B 2) https://i.gyazo.com/a94a6dc2597549ced2c098497967e30b.png I think this one is B too 3) https://i.gyazo.com/16fc35d3996e140e812c929f814da16e.png D 4) https://i.gyazo.com/7ff2dbf5efb4ae3daefa51caaf98e028.png B

jimthompson5910 (jim_thompson5910):

1) should be iii only, but that choice isn't listed. So there's a typo here. q -> p is the converse of p -> q q -> p is only false if q = true AND p = false

OpenStudy (anonymous):

So 1 and 2 are wrong but the rest are correct?

OpenStudy (anonymous):

And got it!! I'll go fix these two up

jimthompson5910 (jim_thompson5910):

2 is wrong as well, yes

jimthompson5910 (jim_thompson5910):

3 is wrong

jimthompson5910 (jim_thompson5910):

if a figure is a kite, then it is NOT a parallelogram (and vice versa)

jimthompson5910 (jim_thompson5910):

4 is wrong too

OpenStudy (anonymous):

For 1, do you think D would fit since it has iii in it?

jimthompson5910 (jim_thompson5910):

4) if you throw a dart and you know 100% that it landed in circle A, are you guaranteed it landed in circle T as well?

OpenStudy (anonymous):

Not guranteed no Would number 4 be C?

jimthompson5910 (jim_thompson5910):

you need to post these problems one at a time

jimthompson5910 (jim_thompson5910):

why is 4 C?

OpenStudy (anonymous):

Ok ! One second I will go fix them all up and return

jimthompson5910 (jim_thompson5910):

it's just a bit confusing. It's better to focus on one at a time

OpenStudy (anonymous):

1) I'm guessing D would fit this best if iii is the one wrong, so D

jimthompson5910 (jim_thompson5910):

if D was just "iii only" then it would be the answer

jimthompson5910 (jim_thompson5910):

but D isn't that, so that's why I'm thinking there's a typo

OpenStudy (anonymous):

Ohhh I'll email the teacher about this one !! for 2, I'm a bit stuck because CD is suposed to be half of WS and LI added up, but with each number I get a number too big to fit into all of them

jimthompson5910 (jim_thompson5910):

`CD is suposed to be half of WS` it's the other way around CD = 2*WS

jimthompson5910 (jim_thompson5910):

CD = 2*WS 5x+3 = 2*3x 5x+3 = 6x solve for x, then use it to find the value of CD = 5x+3

OpenStudy (anonymous):

X is 3 so CD = 5*3+3 CD= 15+3 so it'd be 18?

jimthompson5910 (jim_thompson5910):

yep

OpenStudy (anonymous):

Thank you !! I'll do 3 and 4 now

jimthompson5910 (jim_thompson5910):

you're welcome

OpenStudy (anonymous):

I had two choices for 3, square and kite I'm guessing its either square or rhombus but I believe rhombus

jimthompson5910 (jim_thompson5910):

why rhombus?

OpenStudy (anonymous):

A rhmbus is a parallelogram and the sides are pperpendicular

jimthompson5910 (jim_thompson5910):

rhombus has `sides are perpendicular` ---> false the diagonals are perpendicular, not the sides

OpenStudy (anonymous):

Ohhh So it's rhombus? I'll do 4 now

jimthompson5910 (jim_thompson5910):

yeah it's a rhombus

OpenStudy (anonymous):

I believe 4 is D because if you throw the penny like you said then it won't be guranteed to land on either

jimthompson5910 (jim_thompson5910):

if you throw a penny in circle A, where else is it guaranteed (100%) to land? which other circle?

OpenStudy (anonymous):

c? I am sorry if I am being slow

jimthompson5910 (jim_thompson5910):

circle C you mean?

OpenStudy (anonymous):

Mhm!!

jimthompson5910 (jim_thompson5910):

yes, if you throw a penny in circle A, it is guaranteed to land in circle C because of how circle A is set up: it's completely inside circle C so, If A, then C in logic notation: A --> C

OpenStudy (anonymous):

So C? Thank you !! I really appreciate your help

jimthompson5910 (jim_thompson5910):

yes and yw

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