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rmjracingz2185
20.07.2019 •
Mathematics
What is the result of substituting for y in the bottom equation? y = x – 3 y = x2 + 2x – 4 a. (x – 3) = x2 b. y = (x – 3)2 + 2(x – 3) – 4 c. x – 3 = x2 + 2x – 4 d. y = x2 + 2x – 4 – (x – 3)
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Ответ:
We have been given two equations.
When we will substitute y in one of these equation we will get
Now let us find which of the given options are equivalent to our equation.
A)
This is not equivalent to our answer.
is missing.
B)
In this equation y's value has been substituted in place of x which will make the equation wrong. When we will substitute value of
we will get
which is not true.
C)
is equivalent to our equation.
D)
In this equation
is being subtracted from
. When we will simlify this equation we will get
Therefore option C is correct.
Ответ:
C.![x-3=x^2+2x-4](/tpl/images/0111/8496/8698f.png)
Step-by-step explanation:
We are given that two equations
We have to find the result of substituting for y in given equations.
To find the result of substituting for y we will substitute the value of y in any one equation .
Substitute the value of y in equation (2)
Then, we get
Hence, this is the result of substituting for y in given equation.
Hence, option C is true.
C.![x-3=x^2+2x-4](/tpl/images/0111/8496/8698f.png)
Ответ:
The factor pairs of the number 48 are: 1 x 48, 2 x 24, 3 x 16, 4 x 12, and 6 x 8.