What are the x- intercepts of the quadratic function f(x) = x² -5x + 4

Mathematics

1 answer:

meriva3 years ago

7 0

X intercepts; when f(x) = 0
First factor the equation
(x-1)(x-4) = 0
Zero product property
The x intercepts are 1 and 4

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Can a triangle be made with sides of length seven, 10, 20

photoshop1234 [79]

No, a triangle can't be made with sides of those lengths.

-- The 10 and the 20 must be hooked together somewhere on the triangle.
One end of the 10 is connected to one end of the 20.

-- Now imagine the distance between the OTHER ends of those sides.
If the 10 and the 20 are folded together so that they both go in the same
direction and there's no angle between them, the closest their OTHER ends
can be is 10 units apart.

-- So if you want to stick a 3rd side between them and make a triangle,
the 3rd side has to be AT LEAST 10 units long. If it's any shorter than
10 units, it can't reach the open ends of the 10 and the 20.

-- Seven is less than 10.
So it can't reach the open ends of both the 10 and the 20 at the same time.

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3 years ago

Helppppp plzzzzz im almost out of timeeeee

Nata [24]

Answer:

the correct answer is below

Step-by-step explanation:

11p7-9p5+8p³-4p7+13p5-5p³

11p7-4p7-9p5+13p5+8p³-5p3

=7p7+4p5+3p³

note: I multiply all the terms in the second parentheses by the negative sign that is beside it.

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