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lozanna [386]
3 years ago
13

Question: Solve for x (x+3)^2 Answer Choices: 2x^2 + 3x + 2 x^2 + 6x + 9

Mathematics
1 answer:
4vir4ik [10]3 years ago
6 0

Answer:

x^2+6x+9

Step-by-step explanation:

(x+3)^2=

(x+3)(x+3)=

x^2+3x+3x+9=

x^2+6x+9

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Solve the system by either substitution or elimination<br> X-3y-3z=9<br> 5x-3y+3z=-3<br> -4x+2y-4z=4
zlopas [31]
X - 3y - 3z = 9
5x - 3y + 3z = -3
--------------------add
6x - 6y = 6

x - 3y - 3z = 9.....multiply by -4
-4x + 2y - 4z = 4..multiply by 3
-------------------
-4x + 12y + 12z = -36 (result of multiplying by -4)
-12x + 6y - 12z = 12 (result of multiplying by 3)
-----------------add
-16x + 18y = - 24

6x - 6y = 6.....multiply by 3
-16x + 18y = -24
---------------------
18x - 18y = 18 (result of multiplying by 3)
-16x + 18y = -24
--------------------add
2x = - 6
x = -6/2
x = -3

6x - 6y = 6
6(-3) - 6y = 6
-18 - 6y = 6
-6y = 6 + 18
-6y = 24
y = -24/6
y = -4

x - 3y - 3z = 9
-3 - 3(-4) - 3z = 9
-3 + 12 - 3z = 9
9 - 3z = 9
-3z = 9 - 9
-3z = 0
z = 0

so ur solution is (-3,-4,0)


4 0
3 years ago
Ill give brainliest - please help ASAP<br><br> WITH THE WORK THO PLEASE?
evablogger [386]

Answer:

this is your answer look it once

5 0
3 years ago
Find the EXACT area AND circumference of the following circle.
VARVARA [1.3K]

area = Pi*r^2

= Pi*10^2

=100Pi

=314.1592654

circumference = Pi*Diameter

= Pi*20

=20Pi

=62.83185307

3 0
3 years ago
At the end of a​ year, the gross debt of a country stood at about ​$15 trillion. Express this amount in dollars per​ person, ass
Ilia_Sergeevich [38]

Answer:

The country's debt is $ 48,543.68 per person.

Step-by-step explanation:

Given that at the end of a year, the gross debt of a country stood at about $ 15 trillion, to determine this amount in dollars per person, assuming that the population of the country is about 309 million, the following calculation must be done:

15 trillion = 15,000,000,000,000

15,000,000,000,000 / 309,000,000 = X

15,000,000 / 309 = X

48,543.68 = X

Therefore, the country's debt is $ 48,543.68 per person.

4 0
3 years ago
Which value of a does not satisfy the inequality |al &gt; 2a - 3 ?
Diano4ka-milaya [45]
Skhajwsgejwkwvwwiiww KB she
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