7x^2 -3x-6 7x 2 −3x−6
1 answer:
You might be interested in
Answer:
Part 1) The inequality that describes the relationship between the number of cookies each one of them has is
Part 2) Jessica has at least 2 cookies more than Martha
Step-by-step explanation:
Part 1) Find the inequality that describes the relationship between the number of cookies each one of them has
Let
x----> the number of cookies when Jessica started
30-x ----> the number of cookies when Martha started
we know that
Each of them ate 6 cookies from their bag
so
The cookies left in each bag are
(x-6) ----> Jessica
and (30-x-6)=(24-x) ---> Martha
The product is equal to (x-6)(24-x)
The product of the number of cookies left in each bag is not more than 80.
so
Multiply by -1 both sides
Part 2) Solve the quadratic equation
Solve by graphing
The solution is x=16 cookies
so
(30-x)=30-16=14 cookies
therefore
The number of cookies when Jessica started was 16 cookies
The number of cookies when Martha started was 14 cookies
The number of cookies left in each bag is equal to
Jessica
16-6=10 cookies
Martha
14-6=8 cookies
Jessica has at least 2 cookies more than Martha
Your question is a little ambiguous, but I am assuming that you meant to say the function
Thus, I am solving your question based on assuming the function such as
But, it would still clear your concept, no matter what the function is.
Answer:
we conclude that
The graph is also attached.
Step-by-step explanation:
Given the function
We know that the domain of a function is the set of input or argument values for which the function is real and defined.
As the function has no undefined points nor domain constraints.
Thus, the domain is
Therefore, we conclude that
The graph is also attached.
