Answer:
[see below]
Step-by-step explanation:
A function's inputs do not repeat. This means that any point with the x-value not repeated with the other points can be added to ensure that it continues as a function.
In this scenario:
{x| x ≠ -7, 4, 0, -2}
A point that does not have the x-value of -7, 0, 4, and -2 could be added to the relation to ensure it continues to be a function.
Hope this helps.
Answer:
0.25 = one time charge
Step-by-step explanation:
Given that:
Charging pattern of store for scanning documents :
(One time fee + fixed amount per page scanned)
The equation:
y=0.10x+0.25 ; gives the total cost of scanning x document pages
Comparing the equation and the charging pattern :
y = total cost
0.10 = fixed cost per page
x = number of pages scanned
0.25 = one time charge(not dependent on number of pages to be scanned).
The length (L) of the rectangle can be written as a function of the width (W)
:
Now since we know Area = Width*Length, we can write the area as a function of the width:
Distributing the W inside the parentheses we have:
We know the area is 54 ft^2, so we can rewrite it as:
Now solve for W by factoring (or by applying the quadratic formula):
Factor out a common 2W from the first two terms and a 9 from the last two terms:
Regroup the terms to get our fully factored equation:
This gives us the roots W = 6 and W = -9/2, but width can't be negative so we have width = 6 ft. Then remember that the length L = 2W - 3, so our length is:
So now we know that our rectangle is 9 feet long and 6 feet wide.
Answer:
2
Step-by-step explanation:
It is 7.5 because it’s quick maths