Answer:
Point form = (3, 7)
Equation form = x = 3, y = 7
Step-by-step explanation:
First we want to replace the occurrences of y in 3x - 4y = -19 with x + 4
3x - 4 (x+4) = -19
Next we simplify the left side.
3x - 4x - 16 = -19
Subtract 4x from 3x
-x - 16 = -19
Then we want to solve for x in -x - 16 = -19
So lets move all terms that do not contain x to the right side.
-x = -19 + 16
Then add
-x = -3
Then we want to divide each term in -x = -3 by -1
y = 3
y = x + 4
Now we want to replace all occurrences of x with 3 in each equation.
y = (3) + 4
x = 3
Add 3 and 4 and we get 7.
Therefore our solution as an ordered pair is (3, 7).
Equation form = x = 3, y = 7.
Answer:
2.21 times 10 to the 21 power or 2.21^20
Step-by-step explanation:
Step-by-step explanation:
The way that I would do it, would be to use the point distance formula to find the length of each side.
Distance formula: ![\sqrt{(x2-x1)^{2} (y2-y1) ^{2} }](https://tex.z-dn.net/?f=%5Csqrt%7B%28x2-x1%29%5E%7B2%7D%20%28y2-y1%29%20%5E%7B2%7D%20%7D)
After you use this formula to find the length of all sides of the polygon, you would need to use the appropriate area formula to find the area of the polygon.
Area of Triangle: A= 1/2 base times height
Area of Rectangle: A= length times width
Area of Square: A= s^2 where s is the length of the side
Area of Parallelogram: A= base times height
Area of Trapezoid: A= 1/2 times height (base 1 + base 2) where base 1 and base 2 are the parallel sides
Area of Kite or Rhombus: A= 1/2 (diagonal 1 times diagonal 2)
Area of Regular Polygons: A= 1/2 (apothem times perimeter)
X y z, if it is a triangle= 180
if not, x+y+z cannot be answered, be more specific
A line is parallel that connects opposite corners of a flat shape, I hope that this helps! <span />