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Vadim26 [7]
3 years ago
13

PLEASE HELP ASAP! BRAINLIEST TO BEST/RIGHT ANSWER

Mathematics
2 answers:
Butoxors [25]3 years ago
5 0
I won't bore you with the details, but according to my math the answer should be C. 1/2. 
kicyunya [14]3 years ago
3 0
Sorry, the answer can either be C, or D both of which work
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Find the values of x and y
makkiz [27]

Answer:

x = 2

y = 12

Step-by-step explanation:

In triangle ABD, CE is the mid segment.

Therefore, by mid segment theorem:

2(5x - 3) = x + 12

10x - 6 = x + 12

10x - x = 12 + 6

9x = 18

x = 18/9

x = 2

Since, DE = EA

2y - 4 = y + 8

2y - y = 8 + 4

y = 12

8 0
3 years ago
What is the value of b2 - 4ac for the following equation?<br><br> 2x 2 - 2x - 1 = 0
NikAS [45]
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3 years ago
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BartSMP [9]

Answer:

x^{4} -2 x^{2} +1

Step-by-step explanation:

<u>Step 1</u>:-

Given problem is [(x + 1)(x - 1)]^2

by using formula in side square bracket is

(a+b)(a-b)=(a^{2}-b^{2})

[x^{2} -1]^{2}

<u>Step 2</u>:- again we will use formula

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[tex](x^2-1)^{2} = (x^{2}) ^{2} -2 x^{2}  (1)+1^{2}[/tex]

on simplification we get

x^{4}-2 x^{2}  +1

<u>Final answer:-</u>

x^{4}-2 x^{2}  +1

<u />

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I believe the answer is $1,968
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The first step is to subtract 6 from both sides to cancel it out. You will be left with -3x= -1.
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