Answer:
123
Step-by-step explanation:
012+121
Answer:
C
Step-by-step explanation:
i had this question on a quiz
<span><u><em>Answer:</em></u>
720 ways to hang the pictures.<span>
<u><em>Explanation:</em></u>
The answer can be found using the fundamental counting principle or 6!.
There are 7 pictures but the grandfather must be in the middle so it is the only possible choice. there are 6 other choices that must be made. the first picture has 6 possibilities, the 2nd has 5 possibilities, the 3rd has 4 possibilities, etc. giving us the possibilities can also be listed as:
6*5*4*3*2*1 or 6! =720.</span></span>
30/54 in simplest form is 5/9
9x^2 -6x +1+12=0
9x^2 -6x +13=0
factorise
(3x-1)(3x-1) =0
so, x= 1/3