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Mathematics 19 Online
OpenStudy (calculusxy):

What does this equal to? -[-(-3)]=

OpenStudy (anonymous):

-3 I think

OpenStudy (calculusxy):

Is it -3

OpenStudy (anonymous):

actually it would be negative 3 always because no matter what the absolute value is ALWAYSALWAYSALWAYS positive but with that negative OUTSIDE of it it would turn it negative

OpenStudy (aravindg):

Think of it like this If even number of -ve sign comes, then they get multiplied to give a positive sign and when odd number of -sign occurs then we get a negative sign.

OpenStudy (calculusxy):

Can you also help me with another question?

OpenStudy (calculusxy):

Wait..

OpenStudy (anonymous):

it would have to be -3, because absolute value is always positive?

OpenStudy (calculusxy):

36÷(-4)(3)-16÷2×(-4)+3 (9)÷3

OpenStudy (anonymous):

ok this is actually really easy 63/(-4)(3)-16/2x(-4)+3(9)/3 so first do /orx -15.75x3-16/2x(-4)+3(9)/3 47.25-16/2x(-4)+3(9)/3 47.25--32+3(9)/3 47.25--32+27/3 47.25+32+9 88.25 I think that's right @_@

OpenStudy (calculusxy):

How did you het 63?

OpenStudy (anonymous):

oH it was 36 ok the answer is 50

OpenStudy (calculusxy):

But the calculator says 14.

OpenStudy (anonymous):

the answer is 68 (sorry I forgot to times by 3) you need to use order of operations when solving this, so you divide and multiply first

OpenStudy (calculusxy):

What I dont get it why the answer qccdingng to the calculator 14.

OpenStudy (anonymous):

well did you use order of operations? I dont use calculators for the entire thing because its easy to get very confused, thats why I wrote each step down

OpenStudy (anonymous):

I redid it and it's definitely 68

OpenStudy (calculusxy):

Used pemdas even though in london it is bedmas

OpenStudy (calculusxy):

Cuz I live in London

OpenStudy (anonymous):

bedmas? whats that o.o

OpenStudy (anonymous):

brackets exponets devide multiplu add subtratc?

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