A group of numbers or objects is literally just called a group.
5
4
6
2
3
10
It is divisible by all number given in the option except 9...
D. never crosses the x-axis.
a negative discriminant means the quadratic equation can never equal zero (which is the x-axis)
Since you’re subtracting integers, use LOO (Leave, Opposite, Opposite).
You leave 2.3 alone.
You turn the minus to a positive, since you opposite the sign.
Then, you change the sign of the (-2.3), so now it becomes a positive 2.3.
2.3+2.3=4.6
The answer is 4.6.