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Lina20 [59]
3 years ago
7

(-2,+

"latex-formula">-7)x^{2}
Mathematics
1 answer:
rewona [7]3 years ago
6 0

(-2 = √x - 7)x² (calculate)

(-9 = √x)x² (remove the parantheses)

-9x² + √x x²

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Elza [17]
The domain is y >=0. Domain is the possible x values
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3 years ago
Which line has an equation of y=-5x+4 in slope-intercept form?
tino4ka555 [31]

You can figure the line for each pair of points, or you can try the points in the equation you have and see which are on the line.


First answer: x=1, y=-5×1 +4 = -1 . . . not 9. (1, 9) is not a point on the line


Second answer: x=2, y=-5×2 +4 = -6 . . . not -14. (2, 14) is not a point on the line


Third answer: (see the calculation for the first answer) . . . -1 ≠ 1. (1, 1) is not a point on the line


Fourth answer: (see the calculation for the second answer) We know that (2, -6) is on the given line. Checking (4, -16), we find it is as well.



The appropriate choice is the 4th answer:

... a line passing through the points (2, -6) and (4, -16)

4 0
3 years ago
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6
aliina [53]

Step-by-step explanation:

please write clearly and row wise understand problem

6 0
2 years ago
I need help please no links!
Tamiku [17]

Answer:

It will be 8 meters long.

l =  \sqrt{ {17}^{2}   -  {15}^{2} }  \\ l =  \sqrt{64}  \\ l = 8 \: m

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irinina [24]

the third choice is correct


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