rero
07.01.2021 •
Mathematics
The hanger image below represents a balanced equation,
6
21
Find the value of d that makes the equation true.
MY
d=
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Ответ:
The value of d that balances the equation is d=15
Step-by-step explanation:
Equations
We are given an image with a hanger that represents a balanced equation.
If the equation is balanced, then the 'weights' of each side should be equal.
On the right side, there is 21 and on the left side, there are 6 and d.
Adding both, we have 6+d on the left side.
Equating both sides:
6 + d = 21
To find d, we subtract 6 on both sides:
d = 21 - 6
d = 15
The value of d that balances the equation is d=15
Ответ:
The locations of A' and B' are A'(0, 4) and B'(4, 0); lines f and f' are parallel.
Step-by-step explanation:
Dilation about the origin multiplies each coordinate value by the dilation factor. A(0, 2) becomes A'(0, 4) when dilated by a factor of 2. Likewise, B(2, 0) becomes B'(4, 0).
Dilation does not change the direction of lines, so all dilated image lines are parallel to the corresponding original lines.