How to verify it is to divide 8x-20 by 4 and see what you get
If you get 2x-5, then it is correct
Answer:
here
Step-by-step explanation:
Answer: $55.13
Step-by-step explanation:
We will use the American monthly federal income tax (10%) for this calculation
Monthly tax = Monthly salary * Salary per hour * Percentage tax
= 63 * 8.75 * 0.10
= 55.125 --> 55.13, no half cents
Jamal would have to be $55.13 tax each month
A function
is periodic if there is some constant
such that
for all
in the domain of
. Then
is the "period" of
.
Example:
If
, then we have
, and so
is periodic with period
.
It gets a bit more complicated for a function like yours. We're looking for
such that
Expanding on the left, you have
and
It follows that the following must be satisfied:
The first two equations are satisfied whenever
, or more generally, when
and
(i.e. any multiple of 4).
The second two are satisfied whenever
, and more generally when
with
(any multiple of 10/7).
It then follows that all four equations will be satisfied whenever the two sets above intersect. This happens when
is any common multiple of 4 and 10/7. The least positive one would be 20, which means the period for your function is 20.
Let's verify:
More generally, it can be shown that
is periodic with period
.
Answer
-8 r > 0
Step-by-step explanation:
you know that r is less than or equal to -8, so you write that, and then you know that r is also greater than 0, so then you add that to it, and then you have the answer. r will be in the middle because it is the range of what are can be.