Answer:
The correct option is C.
Step-by-step explanation:
The width of the rectangular pen is
![w=x^3-2x+3x^2+15](https://tex.z-dn.net/?f=w%3Dx%5E3-2x%2B3x%5E2%2B15)
The length of the rectangular pen is
![l=x^4-x^2+11x^3-5](https://tex.z-dn.net/?f=l%3Dx%5E4-x%5E2%2B11x%5E3-5)
The perimeter of a rectangle is
![P=2(l+w)](https://tex.z-dn.net/?f=P%3D2%28l%2Bw%29)
![P=2(x^4-x^2+11x^3-5+x^3-2x+3x^2+15)](https://tex.z-dn.net/?f=P%3D2%28x%5E4-x%5E2%2B11x%5E3-5%2Bx%5E3-2x%2B3x%5E2%2B15%29)
![P=2(x^4+12x^3+2x^2-2x+10)](https://tex.z-dn.net/?f=P%3D2%28x%5E4%2B12x%5E3%2B2x%5E2-2x%2B10%29)
![P=2x^4+24x^3+4x^2-4x+20](https://tex.z-dn.net/?f=P%3D2x%5E4%2B24x%5E3%2B4x%5E2-4x%2B20)
Therefore the correct option is C.
Answer:
y - 7 = (x + 5)
Step-by-step explanation:
Point-slope form: y - y1 = m(x - x1)
Slope(m) = 1
Point: (-5, 7) = (x1, y1)
To write the equation in point-slope form, we need to know the slope and one point. Since we were already given the values of the slope and one point, all we have to do is input those values into the equation:
y - y1 = m(x - x1)
y - 7 = 1(x - (-5))
y - 7 = (x + 5)
The equation in point-slope form is: y - 7 = (x + 5)
Answer:
x = - 1/18
Step-by-step explanation:
Move all terms not containing x to the right side of the equation
Divide each term by 18 and simplify
The result can be shown in multiple forms
x = -1/18
Decimal form= -0.05