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Trava [24]
2 years ago
14

Find the value of x​

Mathematics
1 answer:
a_sh-v [17]2 years ago
3 0

4x - 7 = 3x + 9

x = 16

they're equal because they are opposites by the vertex.

<em />

<em>hope it helps :)</em>

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{(12*3)+6}-3^2 divided by (9-6)
Mrac [35]
33. 12*3=36 the u add 6 so it becomes 42. 3^2 is 9 so if u subtract 9 from 42 it becomes 33. 
6 0
3 years ago
Rationalise the denominator of: (√3 + √2)/(√3-√2) = ?<br>​
krok68 [10]

Step-by-step explanation:

<h3><u>Given</u><u>:</u><u>-</u></h3>

(√3+√2)/(√3-√2)

<h3><u>To </u><u>find</u><u>:</u><u>-</u></h3>

<u>Rationalised</u><u> form</u><u> </u><u>=</u><u> </u><u>?</u>

<h3><u>Solution</u><u>:</u><u>-</u></h3>

We have,

(√3+√2)/(√3-√2)

The denominator = √3-√2

The Rationalising factor of √3-√2 is √3+√2

On Rationalising the denominator then

=>[(√3+√2)/(√3-√2)]×[(√3+√2)/(√3+√2)]

=>[(√3+√2)(√3+√2)]×[(√3-√2)(√3+√2)]

=>(√3+√2)²/[(√3-√2)(√3+√2)]

=> (√3+√2)²/[(√3)²-(√2)²]

Since (a+b)(a-b) = a²-b²

Where , a = √3 and b = √2

=> (√3+√2)²/(3-2)

=> (√3-√2)²/1

=> (√3+√2)²

=> (√3)²+2(√3)(√2)+(√2)²

Since , (a+b)² = a²+2ab+b²

Where , a = √3 and b = √2

=> 3+2√6+2

=> 5+2√6

<h3><u>Answer:-</u></h3>

The rationalised form of (√3+√2)/(√3-√2) is 3+2√6+2.

<h3><u>Used formulae:-</u></h3>

→ (a+b)² = a²+2ab+b²

→ (a-b)² = a²-2ab+b²

→ (a+b)(a-b) = a²-b²

→ The Rationalising factor of √a-√b is √a+√b

8 0
2 years ago
A biologist studied the populations of white-sided jackrabbits and black-tailed jackrabbits over a 5-year
natita [175]
The correct answer is B
8 0
3 years ago
What is 9/11 of 5/18​
nexus9112 [7]

Answer

5/22 (fun fact that is my birthday)

Step-by-step explanation:

9/11 * 5/18=45/198=5/22

6 0
2 years ago
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Georgia passes out cookies to 28 friends. if each friend gets 5 cookies, how many cookies did Georgia hand out? Make an equation
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The equation is 28/5. George had 6 cookies left over.(estimate.) hope that helped
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3 years ago
Read 2 more answers
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