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Nookie1986 [14]
3 years ago
5

Factor x^2 + 7x -18 Please help

Mathematics
1 answer:
Anton [14]3 years ago
4 0
x^2 + 7x -18=\\
x^2-2x+9x-18=\\
x(x-2)+9(x-2)=\\
(x+9)(x-2)
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Mice21 [21]
S=2(4x+2x)+4x^2=4x^2+12x

4x^2+12x=7
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3 years ago
PLEASE HELP FAST triangle abc is translated 4 units down and 6 units right, resulting in triangle A’B’C’
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Answer:

D. (6,-1)

Step-by-step explanation:

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3 years ago
In the diagram below AFB is congruent to EFD if EFD = 5x + 6, DFC = 19x - 15, and EFC = 17x + 19, find AFE
yanalaym [24]

The angle m∠AFE is 128 degrees.

<h3>How to find angles?</h3>

∠AFB ≅ ∠EFD

∠EFD = 5x + 6

m∠DFC = (19x - 15)°

m∠EFC = (17x + 19)°

m∠AFE = ?

m∠AFB + m ∠EFD + m∠AFE = 180

Therefore,

5x + 6 + 5x + 6 + m∠AFE = 180

5x + 5x + 6 + 6 + m∠AFE = 180

10x + 12 + m∠AFE = 180

10x + m∠AFE = 180 - 12

10x + m∠AFE  = 168

m∠AFE = 168 - 10x

m∠EFC =  m ∠EFD + m∠DFC

17x + 19 = 5x + 6 + 19x - 15

17x - 5x - 19x = 6 - 15 - 19

-7x = - 28

x = 28 / 7

x = 4

Therefore,

m∠AFE = 168 - 10x

m∠AFE = 168 - 10(4)

m∠AFE = 168 - 40

m∠AFE = 128°

Therefore, the angle m∠AFE = 128°

learn more on angles here: brainly.com/question/13212279

#SPJ1

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2 years ago
Tell whether the lines for the pair of equations are parallel, perpendicular, or neither
attashe74 [19]

Answer:

they are parallel to each other

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3 years ago
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Answer:

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3 years ago
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