How do I solve 27% of 300 using proportion (Decimals)
2 answers:
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Answer:
x ≈ - 5.32, x ≈ 1.32
Step-by-step explanation:
Given
x² + 4x - 7 = 0 ( add 7 to both sides )
x² + 4x = 7
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(2)x + 4 = 7 + 4
(x + 2)² = 11 ( take the square root of both sides )
x + 2 = ± ( subtract 2 from both sides )
x = - 2 ±
Thus
x = - 2 - ≈ - 5.32 ( to 2 dec. places )
x = - 2 + ≈ 1.32 ( to 2 dec. places )
- First, to shift the graph of
1 unit to the right, so
- Second, to shift the graph of
4 units to the left, so
To translate the graph of a function is part of Rigid Transformations because the basic shape of the graph is unchanged
In this case, we have the graph of:
And we need to translate it to make it the graph of:
According to our rules we need:
- First, to shift the graph of
- Second, to shift the graph of
But is the same as
, so the previous steps can be simplified as:
- Shifting the graph of
Below are shown those graphs:
- The blue one is
- The red one is
Shifting graphs: brainly.com/question/10010217
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