Answer:
rational
Step-by-step explanation:
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Order of operations is known as PIMDAS P(Parenthasis) I(Integers) M(Multiplication or Division which ever comes first) (A) (S)Addition and subtraction are last same rule. Whichever one comes first after all other higher steps are acheived.
–(x^2–2x+12) would become –x^2+2x–12.
3x^2+9x+13 – x^2+2x–12
= 2x^2 + 11x – 1
Answer:
x= -1
Step-by-step explanation:
-4(2x+5)+x+2= -11
-8x-20+x+2
-7x-18= -11
+18 +18
-7x= 7
-7x/-7 =7/-7
x= -1
Hope this helps!
Answer:
A point E is taken on OB such that OC= OE and draw EF perpendicular to OX or OX' .
Since,
< YOB= <XOA
Therefore, < OEF=<COD
Now, from the right- angled traingle EOF and right-angled traingle COD we get ,< OEF= < COD and OE= OX
hence, traingle EOF= Triangle COD ( Congruent)
Therefore, EF=OD, OF= DC, And OE= OC