Please help iam crying this is my final exam please
1 answer:
Given:
The graph of a system of equations.
To find:
The solution of the given system of equations.
Solution:
If a system of equations has two equations, then the intersection points of the graphs of these two equations are the solutions for the system of equations.
From the given graph it is clear that the graph of both line intersect each other at point .
Therefore, the solution is .
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<u>Question</u>:
A rectangle has a height of 4 and a width of x² + 3x + 2. Express the area of the entire rectangle.
<u>Given:</u>
The height of the rectangle is 4.
The width of the rectangle is
We need to determine the area of the entire rectangle.
<u>Area of the entire rectangle:</u>
Let us determine the area of the entire rectangle.
The area of the rectangle can be determined using the formula,
Substituting height = 4 and width =
Thus, we get;
Multiplying the terms by 4, we get;
Thus, the area of the entire rectangle is
Answer:
So we can express the radius in terms of the hours elapsed like this:
And the reason of this is because each hour the radius increase 6.5 inches, and if we replace in the formula of area we got:
And this function would represent the area of the circle as function of the hours elapsed,
Step-by-step explanation:
For this case we know the radius of a circle given and we also know the incresing rate for the radius:
And we want to express the are of the circle A as a function of h = the number of hours elapsed.
We know that the area of a circle is given by:
So we can express the radius in terms of the hours elapsed like this:
And the reason of this is because each hour the radius increase 6.5 inches, and if we replace in the formula of area we got:
And this function would represent the area of the circle as function of the hours elapsed,