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Alecsey [184]
3 years ago
15

Solve: |x2 - 4 | = x + 2

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
3 0

\tt\it\bf\it\huge\bm{\mathfrak{{\red{hello*mate♡}}}}

\tt\it\bf\huge\it\bm{\mathcal{\fcolorbox{blue}{yellow}{\red{ANSWER==>}}}}

_______________________________

<h3>x²-4=x+2</h3>

<h3>=>x²-x-4-2=0</h3>

<h3>=>x²-x-6=0</h3>

<h3>=>x²-3x+2x-6=0</h3>

<h3>=>x(x-3)+2(x-3)=0</h3>

<h3>=>(x-3)(x+2)=0</h3>

<h3>=>x=3 and x= -2</h3>

<h2>iz the correct answer!</h2>

✌️✌️

_______________________________

\tt\it\bf\huge\it\bm{\mathcal{\fcolorbox{blue}{yellow}{\red{BE-BRAINLY !}}}}

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Use pi=3 calculate the length of a cicumference of a circle with a radius of 5cm
lions [1.4K]
Circumference=2pir
r=5
pi=3
circumference=(2)(3)(5)
circumfernce=6(5)
circufmerence=30

<span>answer is 30cm</span>
8 0
4 years ago
at a school number of boys : number of girls =9:7. There are 116 more boys than girls. Work out the total number of students at
Amanda [17]
X=number of boys.
y=number of girls.
we suggest this system of equation
x/y=9/7
x=y+116
We solve this system of equation by substitution method.
(y+116)/y=9/7
7(y+116)=9y
7y+812=9y
9y-7y=812
2y=812
y=812/2=406

x=y+116
x=406+116=522

answer: At the school there are 522 boys and 406 girls.

to chek.
522/406=1.2857...
9/7=1.2857...

The number of boys (522) is equal to 406+116=522.
5 0
4 years ago
Read 2 more answers
Write the equation of a line that contains the point (1,5) and is perpendicular to the
Dennis_Churaev [7]

Slope of line that is perpendicular to the  line y = 2x - 6,

m=-\dfrac{1}{2}

Line passes through (1,5).

Equation of line will be,

y-5=m(x-1)\\y-5=-1/2{x-1}\\2y-10=-x+1\\2y=11-x

7 0
2 years ago
Factorise completely X^4-5X^3+6X^2+4X+8≤0
love history [14]

Answer:

I think the answer is x-11x^5+12x

4 0
3 years ago
Jill sold half of her comic books and then bought sixteen more. She now has 36. With how many did she begin with?
pickupchik [31]
Is it asking how many she began with before she sold them? If so, then I think at the beginning she started out with 40. I think she had 40 because she sold half, and when you divide 40 by 2 it divides perfectly giving you 20. Then add 16 to that and you come out with 36. 
4 0
4 years ago
Read 2 more answers
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