Answer and Step-by-step explanation:
[] means to take the absolute version of the number. That means if the number is negative or positive, the outcome is always positive.
14.
-[3] = -3
15.
[5 + 9] = 14
16.
[17 - 8] = 9
#teamtrees #WAP (Water And Plant)
A number line consists only of one axis, conventionally a horizontal axis. Just create a line, and scale it according to practicality and your preference. Usually, it has an interval of 1 unit. But for this case, since it is in fraction form, the interval should be smaller so that you can see clearly where it is located.
In decimal form, 13/17 is equal to 0.7647058824. Let's just round this off to 0.764, that can suffice already. So, you would expect it to be between 0.7 and 0.8 on the number line. Just estimate visually where it is located. Since, it is more than 0.75, the dot would be just slightly closer to 0.8 than 0.7. The exact location is shown in the attached picture.
694
you just subtract 1212 by 518
694+518=1212
<span>A direct variation means proportionality. Triangular numbers are quadratic in n. T(n)=n(n+1)/2. So no.</span>