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lorasvet [3.4K]
3 years ago
13

Hey i was wondering can i move +7 from inside the absolute value in the left side to -7 outside the absolute value on the right

side? for example in the question below is the answer right is the answer zero ?

Mathematics
2 answers:
Juliette [100K]3 years ago
6 0

\rm |x + 7|  =  - 4

The statement is false for any value of x because the absolute value function is always positive or 0.

  • <em>T</em><em>h</em><em>u</em><em>s</em><em>,</em><em> </em><em>T</em><em>h</em><em>e</em><em> </em><em>e</em><em>q</em><em>u</em><em>a</em><em>t</em><em>i</em><em>o</em><em>n</em><em> </em><em>h</em><em>a</em><em>s</em><em> </em><em>z</em><em>e</em><em>r</em><em>o</em><em> </em><em>s</em><em>o</em><em>l</em><em>u</em><em>t</em><em>i</em><em>o</em><em>n</em><em>s</em><em>!</em><em>!</em><em>~</em>
pashok25 [27]3 years ago
5 0

Answer:

  • A) Zero

Step-by-step explanation:

<u>Given equation:</u>

  • |x + 7| = - 4

The left side is absolute value, we know it is zero or positive value but never negative.

The right side is negative so the equation can't have solutions as we have contradiction above.

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Three consecutive integers are n, n + 1, and n+ 2. Four time s the sun of the least and greatest integers is 12 less than three
Svetradugi [14.3K]
4 times the sum of the least and greatest integers ⇒ 4(n + n +2) = 4n + 8

12 less than three times the least integer ⇒ 3n - 12

4n + 8 = 3n - 12
4n -  3n + 8 = 3n - 3n - 12
n + 8 - 8 = -12 - 8
n = -20
-20, -19, -18 are the integers and the least is -20 
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3 years ago
What is the value of X?
Rama09 [41]
Answer:
46°

Step-by-step explanation:
82°+52°x° = 180°
x = 180°-82°-52°
x=46°


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2 years ago
Does anybody know the answer to this question on Mathswatch?<br><br> :)
professor190 [17]
5 is the correct answer
6 0
3 years ago
On Monday, your bank account balance was -12.58. Because you didn’t realize this, you wrote a check for $ 30.72 for groceries??
Svet_ta [14]

Answer:

43.30

Step-by-step explanation:

hope this helped ;)

8 0
4 years ago
The base of a triangle is 9cm less than the three times the height. The area is 15 cm2.
ziro4ka [17]

Answer:

The height is <u>6 cm</u> and the base is <u>5 cm</u>.

Step-by-step explanation:

Given:

The base of a triangle is 9 cm less than the three times the height. The area is 15 cm².

Now, to find the height and the base of the triangle.

Let the height of the triangle be x.

And then base of the triangle = 3x-9.

The area of the triangle = 15\ cm^2.

Now, we put formula to get the base and height of the triangle:

Area=\frac{1}{2} \times base\ \times height\\\\15=\frac{1}{2} \times (3x-9)\times x\\\\15=\frac{3x^2-9x}{2}

<em>Multiplying both sides by 2 we get:</em>

<em />30=3x^2-9x<em />

<em />30=3(x^2-3x)<em />

<em>Dividing both sides by 3 we get:</em>

<em />10=x^2-3x<em />

<em>Subtracting both sides by 10 we get:</em>

0=x^2-3x-10\\\\x^2-3x-10=0

Now, solving the quadratic equation:

x^2-5x+2x-10=0\\\\x(x-5)+2(x-5)=0\\\\(x-5)(x+2)=0\\\\\\x-5=0\ \ \ \ \ x+2=0\\\\x=5\ \ \ \ \ \ \ \ \ \  x=-2

Hence, the negative result is not to be taken so, we take the positive result.

<u><em>Thus, the height  is 5 cm.</em></u>

Now, substituting the value of x to get the base:

3x-9\\\\=3\times 5-9\\\\=15-9\\\\=6\ cm.

<u><em>Hence, the base is 6cm.</em></u>

Therefore, the height is 6 cm and the base is 5 cm.

6 0
3 years ago
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