anonymous
  • anonymous
Did work!!!! But If you could check and see if my answers are right. Could you also show work, so I know isn't a guess.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
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SolomonZelman
  • SolomonZelman
yes correct for #1
SolomonZelman
  • SolomonZelman
trust me I am not guessing:O

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anonymous
  • anonymous
Thanks, but can you show work pls.
SolomonZelman
  • SolomonZelman
Ok, \(\large\color{black}{ \displaystyle 47-(-68)=47+68=115 }\)
anonymous
  • anonymous
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SolomonZelman
  • SolomonZelman
yes you are correct on #2, as well. Should I show why?
anonymous
  • anonymous
no its ok. the next one is how i wanted you to show work, but its ok
anonymous
  • anonymous
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SolomonZelman
  • SolomonZelman
Yes that is right as well.
SolomonZelman
  • SolomonZelman
(you already showed why)
anonymous
  • anonymous
ok, let me draw out the next one
anonymous
  • anonymous
Sorry took so long ...
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SolomonZelman
  • SolomonZelman
negative × negative = positive (you are incorrect)
SolomonZelman
  • SolomonZelman
\(\large\color{black}{ \displaystyle (-23)\times(-24)=(-1)^2\times 23\times 24=23\times 24 }\) I am just showing that for all positive number a and b, when you say: `(-a)•(-b)`, that will be the same as `a•b`.
SolomonZelman
  • SolomonZelman
Now, lets perform the multiplication
SolomonZelman
  • SolomonZelman
|dw:1440471613916:dw|
SolomonZelman
  • SolomonZelman
Is everything clear, or you have any questions?
anonymous
  • anonymous
Yes, and I had tht on paper but i dont understand why i didnt get that when i drew it out on paper lol
SolomonZelman
  • SolomonZelman
maybe because you counted the 1 on top of the 2 in 23 twice.
anonymous
  • anonymous
Yeah.
SolomonZelman
  • SolomonZelman
I am not sure how you got 652, but as long as you understand everything now, we are good
anonymous
  • anonymous
okay
anonymous
  • anonymous
Needed help...
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SolomonZelman
  • SolomonZelman
\(\rm :\color{blue}{D}\)
SolomonZelman
  • SolomonZelman
That symbol is division I suppose?
SolomonZelman
  • SolomonZelman
Not square root...
anonymous
  • anonymous
k.
SolomonZelman
  • SolomonZelman
\(\large\color{black}{ \displaystyle 6.9~\div~0.03 }\)
SolomonZelman
  • SolomonZelman
Say you have some fraction: \(\large\color{black}{ \displaystyle \frac{A}{B} }\) So you can multiply top and bottom by some number, and the value doesn't change. In other words, \(\large\color{black}{ \displaystyle \frac{A}{B}=\frac{A\times x}{B\times x} }\)
SolomonZelman
  • SolomonZelman
do you agree?
anonymous
  • anonymous
Yes.
SolomonZelman
  • SolomonZelman
Similarly, in our case: \(\large\color{black}{ \displaystyle \frac{6.9}{0.03}=\frac{6.9\times 100}{0.03\times 100}=\frac{690}{3} }\)
SolomonZelman
  • SolomonZelman
I am sure you can divide 690 by 3 in your head, without even involving a paper.
anonymous
  • anonymous
230
SolomonZelman
  • SolomonZelman
Yup
anonymous
  • anonymous
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SolomonZelman
  • SolomonZelman
your answer?
anonymous
  • anonymous
It's a total of 20 questions, if you find this too much, you can tell me.
anonymous
  • anonymous
Most of it I know so I'll just post the ones i need help on.
SolomonZelman
  • SolomonZelman
Ok, 104÷13 =?
SolomonZelman
  • SolomonZelman
do that and then add the negative sign to the result
anonymous
  • anonymous
-8?
SolomonZelman
  • SolomonZelman
Yes, that is right
anonymous
  • anonymous
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SolomonZelman
  • SolomonZelman
why 1/7 ?
SolomonZelman
  • SolomonZelman
remember that I said (-a)•(-b) is same as just a•b? Same applies to division: That is, (-a)÷(-b)=a÷b so what is 84÷12 ?
anonymous
  • anonymous
7.
SolomonZelman
  • SolomonZelman
yes, 7 is correct
anonymous
  • anonymous
Are are really nice to take the time out and help :)
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SolomonZelman
  • SolomonZelman
please take a shot
anonymous
  • anonymous
I think its B, but just to check I posted.
SolomonZelman
  • SolomonZelman
yes, option B is correct (and the rest of the options are wrong).
anonymous
  • anonymous
ok.
anonymous
  • anonymous
Okay, problem here is i don't know what the two block things are
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anonymous
  • anonymous
those
1 Attachment
SolomonZelman
  • SolomonZelman
Oh, these are absolute value bars
anonymous
  • anonymous
oh...
SolomonZelman
  • SolomonZelman
Absolute value, one way to think of it: Say you have: "aboslute value of a" which is written as |a| |dw:1440473268072:dw|
SolomonZelman
  • SolomonZelman
so if you have |-a| then it will be also positive a.
SolomonZelman
  • SolomonZelman
for all a
anonymous
  • anonymous
Ohhhh Now I get it. i NEVER knew what those were
SolomonZelman
  • SolomonZelman
But, absolute value is not relevant to the actual question tho'. Your balance after you spent 7$ more than what you had is 7 dollars less, and that is represented by -7.
SolomonZelman
  • SolomonZelman
It is not just 7, or not |7| or |-7|, because spending more than what you have is a negative 7 dollars on your account.
anonymous
  • anonymous
Okay bare with me here.. I absolutly SUCK at box and whiskers
anonymous
  • anonymous
I chose C btw
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SolomonZelman
  • SolomonZelman
Oh, it is 11:33 pm in my location. I am very late, I am sorry-:( I wasn't looking at the time this whole time, I really have to go, but you can tag other people to help, or open a new post.
SolomonZelman
  • SolomonZelman
@YellowFlowers__ this is how you tag
SolomonZelman
  • SolomonZelman
I apologize and wish you good luck

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