Answer:
<em>A or B, it's either one of the two</em>
{[(8 - 3) * 2] + [(5 * 6) - 5]} / 5 =
= {[2 * 8 + 2 * (-3)] + 30 - 5} / 5 =
= [(16 - 6) + 25] / 5 =
= (10 + 25) / 5 =
= 35 / 5 =
= 7
Brackets make it look complex but it's not that bad at all :)
Answer:
The answer is "
".
Step-by-step explanation:
Given:
![Line = y= -4x+3 \\ \\point= (8,1)](https://tex.z-dn.net/?f=Line%20%3D%20y%3D%20-4x%2B3%20%5C%5C%20%5C%5Cpoint%3D%20%288%2C1%29)
The formula for the standard Equation of a line:
![\to y= mx +c](https://tex.z-dn.net/?f=%5Cto%20y%3D%20mx%20%2Bc)
compare the above line value:
![m= -4\\\\c= 3](https://tex.z-dn.net/?f=m%3D%20-4%5C%5C%5C%5Cc%3D%203)
When a line is perpendicular so, the m value is: ![= \frac{1}{4}](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1%7D%7B4%7D)
Line equation when one point and m is given:
![\to (y-y_1) = m (x- x_1)\\\\\to (y-1) = \frac{1}{4}(x- 8)\\\\\to 4y-4 = x- 8\\\\\to 4y = x-8+4\\\\\to 4y = x-4\\\\\to y = \frac{1}{4}(x-4)\\](https://tex.z-dn.net/?f=%5Cto%20%28y-y_1%29%20%3D%20m%20%28x-%20x_1%29%5C%5C%5C%5C%5Cto%20%28y-1%29%20%3D%20%5Cfrac%7B1%7D%7B4%7D%28x-%208%29%5C%5C%5C%5C%5Cto%204y-4%20%3D%20x-%208%5C%5C%5C%5C%5Cto%204y%20%3D%20x-8%2B4%5C%5C%5C%5C%5Cto%204y%20%3D%20x-4%5C%5C%5C%5C%5Cto%20y%20%3D%20%5Cfrac%7B1%7D%7B4%7D%28x-4%29%5C%5C)
Step-by-step explanation:
156x+24
..................
Using the side of the square find the area:
Area = 30^2 = 900 square feet.
The rectangles area is the same, 900 square feet.
Let the width = X
The length would be 2X + 70
Area = length x width
X * 2x+ 70 = 900
This expands to 2x^2 * 70x = 900
Use the quadratic formula to solve for x:
-70 +/- sqrt(70^2-4*2(-900))/2*2
X = 10
Width = x = 10 feet
Length = 2x + 70 = 90 feet