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8090 [49]
3 years ago
8

A rectangular pool has a length of

Mathematics
1 answer:
Sholpan [36]3 years ago
8 0
P=(15x-2+4x+7)2=(19x+5)2=38x+10
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Solve. X^2+20x+100=50
choli [55]
1. You con solve the quadratic equation x^2+20x+100=50<span> by following the proccedure below:
 
 2. Pass the number 50 from the right member to the left member. Then you obtain:
 
 x^2+20x+100-50=0
</span><span> x^2+20x+50=0
</span><span> 
 3. Then, you must apply the quadratic equation, which is:
 
 x=(-b±√(b^2-4ac))/2a
 
 </span><span>x^2+20x+50=0
</span><span> 
 a=1
 b=20
 c=50
 

  4. Therefore, when you simplify, the result is:
 
  -10</span><span>±5</span>√2   (It is the last option).<span>


 
 
 
 
 
 </span>
5 0
4 years ago
5 of 17Questions Question 5 Safiya needs to find a number that can be multiplied by 18−−√3 to result in a rational product. Whic
Alexus [3.1K]

Answer:

18 + √3

Step-by-step explanation:

The product of a surd and its conjugate gives a rational number. Hence;

(18 - √3) (18 + √3)

=324 + 18√3 - 18√3 - 3

=321

A rational number does not contain any surd, hence the answer.

3 0
3 years ago
Read 2 more answers
Help plzzz I really need help
Alex17521 [72]
You would divide. 
Think of it as a 'real' situation. You are holding a piece of wire and you cut it into 3 pieces so you have 'divided' it into 3 pieces. 
62.4 divided by 3 = ??
The answer is 20.8 per piece 

To check your answer you can take 20.8 and multiply it by 3.


7 0
4 years ago
DO NOT TRY TO ANSWER IF YOU DO NOT KNOW THE ANSWER
Fantom [35]

Answer:

C) 120

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
An average-size adult Florida manatee measures 3 meters long. How many centimeters is this?
dedylja [7]
300. 100 cm in a meter, times three meters is 300.
5 0
3 years ago
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