How do you eliminate the radical sign?
1 answer:
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Answer:
Properties of a right tangle can be created in a Coordinate Plane
Distance between two points A and B are shown as below
Step-by-step explanation:
Find distance between two point using Pythagorean Theorem.
Properties of right triangles and creating right triangle as a coordinate Plane.
Suppose two point are drawn in triangle containing value of (-2 , 4 ) and (-2, -2)
then
In (-2 , 4 ) and (-2,-2)
taking y-values that is 4 and -2
find difference between them such as
4-(-2) = 6
Distance is (-2,4) is 6 unit from (-2,-2)
We can also find unit length of A and B
Side A: (-1, 2) and (3,2)
3-(-2) = 5
side A is 5 unit in length
Side B : (-2,2) and (-2,-1)
2 - (-1) = 3
Side B is 3 unit in length
Answer:
x = 4 ±
Step-by-step explanation:
Given
x² - 8x = 3
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 4)x + 16 = 3 + 16
(x - 4)² = 19 ( take the square root of both sides )
x - 4 = ± ( add 4 to both sides )
x = 4 ±