By Pythagoras’ theorem,
BD square= AB square + BC square
BD square= 3.15 square + 1.77 square
BD Square=13.0554
BD= square root 13.0554
BD=3.61 (to 3sf)
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Answer:
y = x - 3.
Step-by-step explanation:
Given:
Slope = 1
Point on line: (8, 5)
Plug these into the formula y = mx + b, where:
m = slope
x = x coordinate of point
y = y coordinate of point
5 = 1(8) + b
5 = 8 + b
Subtract both sides by 8:
5 - 8 = 8 -8 + b
-3 = b
Rewrite the equation:
y = x - 3.
Answer:x=20
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Answer:
The number is 3
Step-by-step explanation:
Let
x-----> the number
we know that
The algebraic representation of the phrase "twelve decreased by three times a number is equal to the same number"
is equal to
![(12-3x)=x](https://tex.z-dn.net/?f=%2812-3x%29%3Dx)
solve for x
![3x+x=12](https://tex.z-dn.net/?f=3x%2Bx%3D12)
![4x=12](https://tex.z-dn.net/?f=4x%3D12)
![x=3](https://tex.z-dn.net/?f=x%3D3)