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Over [174]
3 years ago
9

4x+12 8x- 4(x+3) 412x+y)

Mathematics
1 answer:
Bumek [7]3 years ago
7 0

Answer:

−1648x2−4812x+y

Step-by-step explanation:

4x+128x−4(x+3)(412)x+y

=−1648x2−4812x+y

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I WILL GIVE BRAINLY
Gnom [1K]

9514 1404 393

Answer:

  m^2 = 35/9

Step-by-step explanation:

The line will be tangent to the ellipse where there is one point of intersection between the line and the ellipse. We can find that case by looking at the discriminant of the quadratic.

  x^2 +9(mx +2)^2 = 1

  x^2 +9(m^2x^2 +4mx +4) = 1

  (9m^2 +1)x^2+36mx +35 = 0 . . . . subtract 1, collect terms

__

Then the discriminant is ...

  (36m)^2 -4(9m^2 +1)(35)

We want it to be zero, so we have ...

  1296m^2 -1260m^2 -140 = 0 . . . . eliminate parentheses

  36m^2 = 140 . . . . . . . . . . . . . . . add 140

  m^2 = 140/36 . . . . . . . . . . . . divide by 36

  m^2 = 35/9

3 0
3 years ago
Which is shorter 96in or 12ft
sammy [17]
96 inches is shorter than 12 feet. This is because 12 feet in inches is 144 inches, which is greater than 96. 

Hope this helps! :D

~PutarPotato
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