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Lelu [443]
4 years ago
13

If (x + 2) is a factor of x3 − 6x2 + kx + 10, k =

Mathematics
1 answer:
mafiozo [28]4 years ago
7 0
Hello:
let : f(x) = <span>x3 − 6x2 + kx + 10
</span><span>If (x + 2) is a factor of x3 − 6x2 + kx + 10  : f(-2) = 0
(-2)^3-6(-2)² +k(-2)+10=0
-8 -24-2k +10 = 0
-2k =8+24-10
-2k = 22
k = -11</span>
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avanturin [10]

Answer:

<em>x = 9</em>

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Tasya [4]

The coordinates of point F are (15/4 , -5/2)

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<h3>What is the coordinates  about?</h3>

From the image attached:

AB divided into 4 similar parts, hence

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  • F is the mid-point of EB

Note that the rule of the mid-point states that:

When M (x , y) is the mid-point of the segment of AB, where A (x1 , y1)  and B (x2 , y2), Then  x = (x1 + x2)/2 and that of  y = (y1 + y2)/2

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Since  F is the mid-point of EB,

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Then F = [(3/2 + 6)/2 , (-2 + -3)/2]

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Then  D = [(-3 + 3/2)/2 , (-1 + -2)/2]

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Note also that:

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Since the y-coordinate of G is similar to y-coordinate of B and C

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Since DG ⊥ BC

Then DG =  vertical segment

So  G has similar x-coordinate of D

Then  The x-coordinate of G = -3/4

The  G = (-3/4 , -3)

Learn more about coordinate from

brainly.com/question/12481034

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6 0
1 year ago
Will give brainliest
Rashid [163]

Answer:

thanks for the points ily

5 0
3 years ago
Read 2 more answers
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