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Airida [17]
3 years ago
7

Is (x+a) (x+b) the same thing as x(a+x+b)?

Mathematics
2 answers:
VMariaS [17]3 years ago
6 0
No, I dont believe its the same thing because I remember doimg those equations in high school and they were different
Rufina [12.5K]3 years ago
3 0
Not at all are they the same in my opinion.
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Jean transformed a point by using the rule (x,y) (x-6, y+8). The image point is (–4, 1). Which point is the pre-image?
lubasha [3.4K]
For this case we have the following transformation:
 (x, y) (x-6, y + 8)

 Using the transformation we have that the image is:
 (-4, 1)

 Therefore, making use of this information, we can find the coordinates of the pre-image
 We have then:
 x-6 = -4

 From here, we clear x:
 x = -4 + 6

x = 2
 On the other hand we have:
 y + 8 = 1

 From here, we clear y:
 y = 1-8

y = -7
 The coordinates of the pre-image is:
 (x, y) = (2, -7)

 Answer:
 
A point that is the pre-image is:
 
(x, y) = (2, -7)
3 0
3 years ago
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Derive the equation of the parabola with a focus at (0, –4) and a directrix of y = 4. (2 points)
yan [13]
The vertex of the parabola is between the shortest line connecting its focus and directrix, so between (0, -4) and y = 4 is the point (0, 0), which is the vertex of the parabola. Also, this parabola faces downward.
The general formula for a parabola that faces downward is y = -4cx^2, where c is the distance from the vertex to either to focus or the parabola. Since c = 4, the equation is y = -16x^2, which is choice A.
6 0
3 years ago
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Write three hundred eighty-seven thousandths as a decimal number.<br>​
Valentin [98]

Answer:

0.387

Step-by-step explanation:

3 0
2 years ago
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jackie’s report is 5 pages longer than half the number of pages in kane’s report. there are 14 pages in kane’s report. how many
Vitek1552 [10]
Oh! I answered this question last week! Don't know if it was the same exact one, but whatever. So first cut the number of pages in Kate's report in half, then add 5 to that. So, (14÷2)+5
6 0
2 years ago
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Quadrilateral HGEF is a scaled copy of quadrilateral DCAB. What is themeasurement of lin EG?
lozanna [386]

Answer:

14 units

Explanation:

If quadrilaterals HGEF and DCAB are similar, then the ratio of some corresponding sides is:

\frac{FH}{BD}=\frac{EG}{AC}

Substitute the given side lengths:

\begin{gathered} \frac{6}{3}=\frac{EG}{7} \\ 2=\frac{EG}{7} \\ \implies EG=2\times7 \\ EG=14 \end{gathered}

The measurement of line EG is 14 units.

3 0
1 year ago
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