CAN SOMEONE CHECK MY ANSWERS PLEASE????
1.Which is the converse of the statement?
If x is odd, then 2x + 1 is odd.
If 2x + 1 is odd, then x is odd.
If 2x + 1 is not odd, then x is not odd.<<<<
If x is odd, then 2x + 1 is odd.
If x is not odd, then 2x + 1 is not odd.
2.Simplify. -27a^4b^3/3ab
–9a2b
–9a3b2
–3ab
-a^2/9b<<<<<<<<<<<

- anonymous

- Stacey Warren - Expert brainly.com

Hey! We 've verified this expert answer for you, click below to unlock the details :)

- schrodinger

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

- anonymous

@UsukiDoll

- UsukiDoll

ok so the negation of the first statement is
If x is NOT odd, then 2x + 1 is NOT odd.
converse is flipping the statement
If 2x+1 is odd, then x is odd
contrapositive is the negative version of that converse statement
if 2x+1 is NOT odd, then x is NOT odd

- UsukiDoll

\[\frac{-27a^4b^3}{3ab} \rightarrow = -9a^3b^2\]

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

- UsukiDoll

exponent laws \[\frac{a^4}{a} \rightarrow a^{4-1} \rightarrow a^3 \] same applies to b

- anonymous

Thats for the second question right?

- UsukiDoll

yeah... imo both of your answers are way off

- anonymous

Oh..

- UsukiDoll

Original statement
If A then B
Negation
If NOT A then NOT B
conversely
if B then A
contrapositive
if NOT B then NOT A

- UsukiDoll

Original statement
A = x is odd
B = 2x+1 is odd
If A then B
if x is odd then 2x+1 is odd
Negation
If NOT A then NOT B
if x is NOT odd then 2x+1 is NOT odd
conversely if B then A
If 2x+1 is odd then x is odd
contrapositive if NOT B then NOT A
if 2x+1 is NOT odd then x is NOT odd

- UsukiDoll

these guys fail to mention that you can fine tune the negative versions of the statement
If NOT A then NOT B
if x is NOT odd then 2x+1 is NOT odd
if x is even then 2x+1 is even

- anonymous

isnt it odd?

- UsukiDoll

I said you can refine the negative versions of the statement
Negation
If NOT A then NOT B
if x is NOT odd then 2x+1 is NOT odd
if it's not odd, then it's even.. but that can be easily disproved because 2k is even and 2k+1 is odd

- anonymous

Alright..I understood what you told me and when I used it in the equation I get a different answer than they give in the options

- UsukiDoll

a different answer?

- anonymous

Yes I get an even but the choices are all odd

- UsukiDoll

it's probably because they haven't realized that they can fine tune it .

- UsukiDoll

but converse statements are usually positive ... it's the original if A then B statement written in reverse.

- anonymous

So C should be the reverse from the original A then B

- anonymous

Am I correct? or still way off?

- UsukiDoll

worse.......and on top of that I gave out the definitions earlier

- UsukiDoll

look at what I wrote earlier.

- anonymous

So if 2x+1 is odd, then x is odd right?

- UsukiDoll

yes

- anonymous

So if I got that then the answer is A

- UsukiDoll

yes

- anonymous

YES!!!!!!!!!!!!!!!!!!!!!!!!!!!

- anonymous

Can you help with the first question?

- UsukiDoll

of?

- anonymous

Sorry I meant the second question

- UsukiDoll

it's straight forward..... you need to understand the exponent laws for a and b we know that \[\frac{-27}{3} = -9\]

- UsukiDoll

if a and b are just single then it's technically \[a^1\] and \[b^1\] but no one writes it like that anymore

- UsukiDoll

the same goes for -1c... professors will mark points off not because it's wrong.. because the notation is childish... so the correct way to express your answer is -c

- anonymous

Oh really? how come?

- UsukiDoll

they claim that you grew up from high school so now it's time to write it in college style notation

- UsukiDoll

the same goes for simple stuff like this 7+(-7) you can't have a double sign it's 7-7 =0
again for 7-(-7). distribute that negative it's now 7+7 = 14

- UsukiDoll

when I reached Algebra 2, I had to knock it off with writing -1c and just write -c
for the simple problems, it's Algebra 1 that you need to stop writing double signs

- UsukiDoll

and stop writing a^1

- UsukiDoll

that's how the professors work now.

- anonymous

You dont know how many questions I got wrong b/c this -3-3 is actually -3+3 or 5-5-4 is actually 5+ -5 + -4

- UsukiDoll

you can't have double signs... can't have +-, -- , -+,++ . just one is allowed either - or +

- UsukiDoll

I don't know why teachers write stuff like that...it's irritating

- anonymous

That's how I've had it for a few tests

- anonymous

It is reasons why I come to open study xD

- UsukiDoll

what grade are you in?

- anonymous

I'm a freshman

- UsukiDoll

oh 9th grade?

- anonymous

Yeah

- UsukiDoll

where did you get that first question? It belongs in logic and discrete math. something in the 300 level at my university

- UsukiDoll

unless you're at a private school?

- anonymous

No I'm home schooled

- UsukiDoll

oh O_O... in a way that's great because public schools went nuts... you don't want to learn common core..trust me. I'm a Math Major and I hate everyday common core did to Math .

- UsukiDoll

*everything

- anonymous

Lmao if you dont like it then why major in it?

- UsukiDoll

If I didn't go further in my Math Studies, I wouldn't have been able to help you.

- UsukiDoll

xD. I said Common Core Math was awful....the stuff that makes simple subtraction crazy. my cousins, second grade and kindergarten, are stuck with it. Public and private schools have it. x(

Looking for something else?

Not the answer you are looking for? Search for more explanations.