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Rus_ich [418]
3 years ago
7

what should you multiply the first equation (top equation) by in order to eliminate the variable x when the two equations are ad

ded together? 3x-y=1 -12x+y=7
Mathematics
1 answer:
sammy [17]3 years ago
6 0
Multiply by 4.
______
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Express as a trinomial (2x+8)(x-3)
Luden [163]

Answer:

\huge\boxed{(2x+8)(x-3)=2x^2+2x-24}

Step-by-step explanation:

\text{Use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(2x+8)(x-3)=(2x)(x)+(2x)(-3)+(8)(x)+(8)(-3)\\\\=2x^2-6x+8x-24\qquad\text{combine like terms}\\\\=2x^2+(-6x+8x)-24\\\\=2x^2+2x-24

8 0
4 years ago
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Write the slope-intercept inequality for the graph below. If necessary, use <=
Wittaler [7]

Answer:

: Gumuhit ng tatlong bagay na sa alam mo ay naging epekto ng digmaan. Iguhit ito Sa loob

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7 0
3 years ago
I dont mind giving out 40 points to who ever answers this correctly
jenyasd209 [6]

Answer:

27/ (4  x^6 y^8)

Step-by-step explanation:

4(3x^2y^4)^3/(2x^3y^5)^4

expand

4 (3^3  x^2^4 y^4^3) / (2^4 x^3^4 y^5^4)

power of the power rule , exponents to the power are multiplied

4 (3^3  x^(2*4) y^(4*3) / (2^4 x^(3*4) y^(5*4))

4 (27  x^(8) y^(12) / (16 x^(12) y^(20))

put like terms over each other

4 * (27/16) * x^8/x*16  * y^12/y^20

when dividing exponents , we subtract the powers

27 * 4/16 * x^ (8-14) * y^ (12-20)

27* 1/4 * x^(-6) *  y^ (-8)

27/4  *  x^(-6)(y)^ (-8)

negative terms go to the denominator

27/ (4  x^6 y^8)


5 0
4 years ago
1. A fires 5 shots to B's 3 but A kills only once in 3 shots while B kills once in 2 shots. When B has missed 27 times, A
VashaNatasha [74]
It killed 30 birds is the answer
4 0
3 years ago
Stem question, can you plz tell me 3 types of natural water vapor other that steam, fog, and clouds, thanks.
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Answer:

Smoke, Condensation, mist

Step-by-step explanation:

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5 0
3 years ago
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