The right answer is Option B.
Step-by-step explanation:
Given system of equations is;
7x-10y=12
8y-x=11
The first step in elimination method is to make one of the variables same to eliminate it, but in this case, we will first rewrite the equations so that alike variables are in same order.
Therefore,
First step is rewrite the equations so like variables are in the same order.
The right answer is Option B.
Keywords: linear equation, elimination method
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Answer:
6.7"
Step-by-step explanation.
Check attachment
Answer:
Therefore,
The steering wheel’s diameter is 14 inches.
Step-by-step explanation:
Given:
Circumference of Steering Wheel ,
C = 43.96 inches
pi = 3.14
To Find:
Diameter = d = ?
Solution:
The Formula for Circumference is given as,
Substituting the values we get
Therefore,
The steering wheel’s diameter is 14 inches.
The rule for the reflection
rx-axis (x, y) → (x, –y)
ry-axis (x, y) → (–x, y)
<h3>Further explanation</h3>
A reflection is an example of a transformation
Reflection is the process of mirroring each point on the geometry of a certain line.
The original figure is called the pre-image and the final figure is called the image
The image will be congruent with the pre image and the distance of the image to the mirror axis is the same as the distance of the pre image to the mirror axis
There are several reflection equations:
- The equation of reflection across the<em><u> x-axis
</u></em>
x '= x
y '= - y
can be written
- The equation of reflection across the <u><em>y-axis
</em></u>
x '= x
y '= -y
can be written
- The reflection equation across the line <u><em>y = -x
</em></u>
x '= - y
y '= - x
can be written
- The reflection equation across the line x = h
x '= 2h-x
y '= y
can be written
- The reflection equation across the line y = k
x '= x
y '= 2k-y
can be written
So the correct rule for reflection is:
rx-axis (x, y) → (x, –y)
ry-axis (x, y) → (–x, y)
<h3>
Learn more</h3>
the rule for the reflection
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Keywords : reflection, y-axis