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Liula [17]
4 years ago
13

when (2x - 3)^2 is subtracted from 5x^2, what is the result? And how can I show the answer? Thank you x

Mathematics
2 answers:
Leni [432]4 years ago
3 0
5x^2 - (2x - 3)^2 = 
5x^2 - ((2x - 3)(2x - 3)) =
5x^2 - (4x^2 - 6x - 6x + 9) =
5x^2 - (4x^2 - 12x + 9) =
5x^2 - 4x^2 + 12x - 9 =
x^2 + 12x - 9 <===
sladkih [1.3K]4 years ago
3 0
First expand (2x-3)^2
(2x-3)(2x-3)=(2x-3)(2x)+(2x-3)(-3)=4x²-6x-6x+9=4x²-12x+9

so
5x²-(4x²-12x+9)=5x²-4x²+12x-9=x²+12x-9
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6) find HJ<br> 8)find IK
Anastasy [175]

Answer:

HJ = 17

IK = 30

Step-by-step explanation:

to find HI :

GH : 2

HI : ?

IJ : 12

GI : 7

HI = GI - GH

HI = 7- 2

HI = 5

HI + IJ = HJ

5 + 12 = HJ

17 = HJ

To find IK

IJ = ?

JK = 12

KL = ?

IL = 49

JL = 31

To find IK we need to find KL and IJ

KL = JL - JK

KL = 31 - 12

KL = 19

IJ = IL - (JK + KL)

IJ = 49 - 31

IJ = 18

IK = IJ + JK

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4 0
3 years ago
BAYES FORMULA
djverab [1.8K]

Answer:

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Step-by-step explanation:

Given, there are 60% democrats and republicans 40%

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Since the republicans have more % of votes  thus Republic's mayor runs city hall.

6 0
3 years ago
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Answer: -5/3

Step-by-step explanation:

Use the slope formula: \frac{y_{2}-y_1 }{x_2-x_1}

You substitute the numbers in and subtract to get -5/3.

4 0
3 years ago
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ahrayia [7]

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