To express the volume of both trucks in a single expression, we add the expressions,
8x² + 2x - 1
and also,
7x² - 2x + 1
Adding the corresponding terms in the expressions will give us an answer of,
15x²
Thus, the volumes of the trucks in a single expression is 15x².
Answer:
A. 77.4
Step-by-step explanation:
<u>Linear approximation formula</u>

Given function:




Use the chain rule to differentiate the function.

Differentiate the two parts separately:


Put everything back into the chain rule formula:

.
The <u>linear approximation</u> at a = 8 is:

Finally, substitute x = 7.8 into the <u>linear approximation equation</u>:

Answer: 362,365 copies
Step-by-step explanation: Using proportions, I set it up like 33700/? (total copies)= 9.3/100. I multiplied 33700 and 100 to get 3370000 and divided by 9.3 and rounded.
We have:
two congruent triangles wit base b = 6ft and height h = 4ft
two rectangle with length l = 10ft and width w = 5ft
one rectangle with lenght l = 10ft and width w = 6f
The formula of an area of a triangle:

Substitute:

The formula of a rectangle:

Substitute:

The Surface Area:

Substitute:

<h3>Answer: The Surface Area is equal 184 ft².</h3>