Mathematics
8 Online
OpenStudy (nbarrera):
Help me & I WILL Medal U!
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OpenStudy (nbarrera):
Find the volume of the box. Use the formula V = lwh.
OpenStudy (anonymous):
... we need numbers
Mehek (mehek14):
do you have a pic of it?
OpenStudy (unanimoose):
MULTIPLY ALL THE GIVEN LENGTHS TOGETHER.
OpenStudy (anonymous):
lol :P
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OpenStudy (nbarrera):
yes
Mehek (mehek14):
yea basically what @Unanimoose said
OpenStudy (unanimoose):
tHE FORMULA THEY PROVIDE IMPLIES THAT THEY PROBABLY GIVE YOU 3 LENGTHS, MULTIPLY THEM AND THAT IS YOUR VOLUME.
OpenStudy (anonymous):
can we have numbers or a picture?
OpenStudy (nbarrera):
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OpenStudy (unanimoose):
WHOA NVM
OpenStudy (unanimoose):
HAVEN'T DONE THAT IN A WHILE, SORRY M8
Mehek (mehek14):
lol
OpenStudy (anonymous):
ok so here's your equation I think.
OpenStudy (anonymous):
(3x+1)*(2x-1)*(x+2)
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OpenStudy (anonymous):
now let's work through this.
OpenStudy (anonymous):
first you have to combine like terms, but to do that, you have to take off the parentheses
OpenStudy (anonymous):
3x+1*2x-1*x+2
OpenStudy (nbarrera):
ok
OpenStudy (unanimoose):
IT LOOKS EASIER IF YOU PUT IT LIKE THIS.
3X + 2X + X + 2 + 1 - 1
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OpenStudy (anonymous):
ok now to combine like terms, you add or subtract and numbers with the same variables
OpenStudy (unanimoose):
WHAT ARE YOUR OPTIONS?
OpenStudy (unanimoose):
wOOPS, I'M DOING IT WRONG. i ADDED LEL KEK.
OpenStudy (anonymous):
so you have 3x+2x+x=?x
OpenStudy (unanimoose):
bUT YES @okayd IS CORRECT.
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OpenStudy (anonymous):
hint add the numbers in front of the x's
OpenStudy (anonymous):
what do you get?
OpenStudy (nbarrera):
I'll give you the answer choices right now
OpenStudy (anonymous):
@nbarrera
OpenStudy (anonymous):
you have 3x+2x+1x=?x
and 1-1+2=?
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OpenStudy (anonymous):
can you do that?
OpenStudy (anonymous):
ok first thing i thought when i saw dis wus volume, GEEZ THIS IS GONNA BE A BREEZE! then i saw the real thing, HOLY GUACAMOLE IM DEAD!
OpenStudy (anonymous):
lemme try calling somone over to help
OpenStudy (anonymous):
I already simplified it @aahmed123
OpenStudy (nbarrera):
These are the answer choices
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OpenStudy (anonymous):
O,O im a failure (goes sulk in a corner of the room)
OpenStudy (anonymous):
I simplified it to 3x+2x+1x=
and 1-1+2=
OpenStudy (anonymous):
no not like that aahmed123
OpenStudy (anonymous):
oh darn
OpenStudy (jdoe0001):
hmm
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OpenStudy (nbarrera):
OpenStudy (anonymous):
I believe it's A but idk that is asking for x to a power, and that is not something I expected.
OpenStudy (jdoe0001):
looks pretty straightforward to me
V = lwh
length = 2x-1
width = x+2
height = 3x+1
(2x-1)(x+2)(3x+1) <--- nothing exotic
OpenStudy (nbarrera):
yea that how the equation has to look
OpenStudy (jdoe0001):
so... then just multiply away :)
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OpenStudy (nbarrera):
ok so then the answer is B
OpenStudy (jdoe0001):
well.. what did you get for (3x+1)(2x-1) ?
OpenStudy (nbarrera):
6x3+11x2−3x−2
OpenStudy (jdoe0001):
hmmm what did you get say.. on length * width?
OpenStudy (jdoe0001):
or height * length for that matter
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OpenStudy (nbarrera):
so whats the answer?
OpenStudy (jdoe0001):
you'd want to do 2 first
get the result and multiply times the other
OpenStudy (nbarrera):
isn't 6x3+11x2−3x−2
OpenStudy (nbarrera):
yes or no 6x3+11x2−3x−2
OpenStudy (jdoe0001):
sooo.... what did you multiplied first then?
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OpenStudy (nbarrera):
6x3 + 11x2
OpenStudy (jdoe0001):
hmmm well..
what you have is
ength = 2x-1
width = x+2
height = 3x+1
(2x-1)(x+2)(3x+1)
so... 6x3 is not one of them
OpenStudy (jdoe0001):
the idea behind the exercise is, that you understand it
thus you'd want to the multiplication
OpenStudy (nbarrera):
just turned in the test & was Answer C
OpenStudy (nbarrera):
thx anyways