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Lemur [1.5K]
3 years ago
8

PLZ HELP ME WILL MARK BRAINLIEST IF CORRECT NO BS

Mathematics
1 answer:
Rom4ik [11]3 years ago
4 0
Assuming it's just wanting to know what -4+or- sqrt(26):

adding: x= 1.1
subtracting: x=-9.1

Hope this helped!
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Answer: 18.85 units^3

Step-by-step explanation:

V = 3.14 x r^2 x h/3

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What is the derivative of this function?
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The sum of digits in a two digit number formed by two digits from 1 to 9 is 8. If 9 is added to a number then both the digits be
Arturiano [62]
<h2>Explanation:</h2><h2></h2>

Here we need to set a system of two linear equations in two variables. So:

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Let x \ and \ y be those digits, then:

x+y=8 \ \ldots eq1

  • <em>If 9 is added to a number then both the digits become equal. find the number:</em>

<em />

<em />10x+y+9 \ldots expression \ 1<em />

<em />

But from eq 1:

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Substituting y into the expression 1:

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The x-value will be found by hit and trial, so:

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We have to reject this solution because digits are different.

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<em>Then this is a two digit number formed by two equal digits. </em>

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