So, he usually does 55 only, but this one day he did 77, 77 - 55 is 22, so he did 22 more this one day.
if we take 55 to be the 100%, what is 22 off of it in percentage anyway?
Second option
Also, the reason it can not be the third one is because the circle at -3 is shaded in, meaning x can equal - 3, whereas its not present in this inequality: 5 – x > 8
5 - x = 8
+x
5 = x + 8
-8
-3 = x
(when solving for x, make sure its positive, that's why I started of by adding x on both sides. It makes it easier to figure out the values that works of x. )
Hope this helps!
So far the only true statement I see is that function f is increasing whilst function g is decreasing.
I cannot say yes to the first one as there is a lack of x-intercepts.
Past the interval of 0,2, there are no changes in the line of function g as it remains the same despite the increase in y. Function f on the other hand has a rate of change.
The y-intercepts are the same (positive 2) so the third statement is out.
For the given function, the domain is D : { x ≥ 7} and the range is R: { y ≥ 9}
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How to get the domain and range?</h3>
Here we have a square root, remember that the argument of the square root must be equal or larger than zero, so the domain is such that:
x - 7 ≥ 0.
Solving for x we get:
x ≥ 0 + 7
Then the domain is:
x ≥ 7
To get the range, we evaluate in the minimum of the domain:
f(7) = √(7 - 7) + 9 = 9
Then the range is the set of all values larger than 9, because the function is increasing.
So the range is R: y ≥ 9.
If you want to learn more about domain and range:
brainly.com/question/10197594
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