Answer:
option on c or under the first answer
Answer:
<h2>The lengths of the bases of the trapezoid:</h2><h2>
42/h cm and 84/h cm.</h2>
Step-by-step explanation:
The formula of an area of a triangle:

<em>b</em><em> </em>- base
<em>h</em> - height
We have <em>b = 21cm, h = 6cm</em>.
Substitute:

The formula of an area of a trapezoid:

<em>b₁, b₂</em> - bases
<em>h</em><em> - </em>height
We have <em>b₁ = 2b₂</em>, therefore <em>b₁ + b₂ = 2b₂ + b₂ = 3b₂</em>.
The area of a triangle and the area of a trapezoid are the same.
Therefore
<em>multiply both sides by 2</em>
<em>divide both sides by 3</em>
<em>divide both sides by h</em>


The common ratio between terms is 3, so the sequence has general
-th term

for
. The term exceeds 7000 when

which means the first time
exceeds 7000 occurs when
. Indeed,

while the previous term would have been

• Given the table of values, you can identify these points:

If you plot them on a Coordinate Plane, you get:
As you can observe, it is a Linear Function.
• The equation of a line in Slope-Intercept Form is:

Where "m" is the slope of the line and "b" is the y-intercept.
In this case, you can identify in the graph that:

Therefore, you can substitute that value and the coordinates of one of the points on the line, into this equation:

And then solve for "m", in order to find the slope of the line.
Using this point:

You get:

Therefore, the equation for the data in Slope-Intercept Form is:

Hence, the answer is:
• It represents a Linear Function.
,
• Equation:
Its 10+20= 30 and 10++20=30