27-12+4. Please read description. Description:
This is kinda embarrassing to ask...but I keep getting different answers!
Some calculators say it's 19, but when I work it out, I can only get 11!.

So I add 12+4 to get 16.
Then I subtract from 27 and get ll.
Please help and explain what I'm doing wrong please help. I use PEMDAS btw

OKAY! LISTEN THIS CHANGED MATH FOREVER!

Step-by-step explanation:

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27−12+4

=15+4

=19

When using Pemdas you do addition or subtraction in the order that it comes (so which ever is first). Same with multiplication and Division

up

step-by-step explanation:

the orientation of the parabolas can easily be found by analysing the power of x and y and their signs. if x is squared , parabola opens up and also if its coefficient is negative it opens down. if y is squared , the parabola opens right and also if its coefficient is negative it opens left. however in order to do the above analysis our equation must be in standard form .

our parabola is

which is not standard form of any parabola . hence we square on both hand side and convert it into standard form.

hence we see that x is squared and its coefficient is non negative . there for it opens up.

"a" determine whether sage found the correct quotient. show your work

step-by-step explanation: