Let's work out the discriminant b^2 - 4ac:-
D = (-5)^2 - 4*1*7 = 25 - 28 = -3
A negative discriminant shows that there are NO real solutions Answer
Answer:
133.3 (1. dp)
Step-by-step explanation:
First of all we subtract 36 from 60 which is 24 then you divide 24 by 0.18 as its the remaining money divided by the value per mile which gives you the answer: 133.333333 which is rounded
Would be amazing if you marked brainliest :)
Answer:
Step-by-step explanation:
Use the formula for the perimeter of a rectangle.
Yeah. You basically have to look at every x value and see if for every x value, is there ONLY one y-value. So in your example, it is a function because every x value has only one y value. Let’s say you had (1,3) and (1,5). That would not be a function because the x value of 1 has TWO y values (3 and 5), therefore it is not a function.
That’s how you can easily spot if something is a function by just looking at a handful of ordered pairs. I hope this makes sense.
Answer is in the attachment below. Please open it up in a new window to see it in full.
