Module 6 Polynomial the question is in the picture. Alana completed a problem where she had to find the sum of the polynomials (
3x^2+8x-4) and (-8x^3-3x+4). Her answer is 0. Complete the explanation and correct her mistake. When graphed, how many times does the sum change directions??
A rectangular plot of land has a length of (2x^2+5x-20) and a width of (3x+4). What is the polynomial representing the area of the plot of land? Explain how you got your answer. Below.
A rectangular plot of land has a length of (2x^2+5x-20) and a width of (3x+4). What is the polynomial representing the area of the plot of land? Explain how you got your answer. Below.
1 answer:
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The area for the perimeter of a rectangle is:
<em>P = 2l + 2w</em>
In this problem, we are given that P = 155 and l = 45.5. To solve for area, we must find w. To do this, plug in the given info and isolate the w like so:
Now we know w = 32. Knowing all the necessary info, we can use the area formula, <em>A=lw</em>, to solve for A.
The area is 1,456 sq ft.
Hope this helps!
<em>P = 2l + 2w</em>
In this problem, we are given that P = 155 and l = 45.5. To solve for area, we must find w. To do this, plug in the given info and isolate the w like so:
Now we know w = 32. Knowing all the necessary info, we can use the area formula, <em>A=lw</em>, to solve for A.
The area is 1,456 sq ft.
Hope this helps!
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Sum of the interior angles of any triangle is 180° .
Thus ;
Subtract sides 138°
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