3 years ago

Solve for x and y 7x+12 12x-28 9y-77

Mathematics

1 answer:

motikmotik3 years ago

8 0

Answer: x= 9y - 77 its vertical intercep 0, -77

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spin [16.1K]

If $x=-4$ is a zero of $p(x)$ , then we can write

$p(x) = (x + 4) q(x)$

for another polynomial $q(x)$ .

Note that $x^2 - 6x + 5 = (x - 5)(x - 1)$ . Then

$p(x^2 - 6x + 5) = p\bigg((x-5)(x-1)\bigg) \\\\ ~~~~~~~~~~~~ = ((x - 5)(x-1) + 4) q\bigg((x-5)(x-1)\bigg) \\\\ ~~~~~~~~~~~~ = (x^2 - 6x + 9) q(x^2 - 6x + 5) \\\\ ~~~~~~~~~~~~ = (x - 3)^2 q(x^2 - 6x + 5)$

so that $\boxed{x = 3}$ is a root of $p(x^2 - 6x + 5)$ .

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2 years ago

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denis-greek [22]

The answer is: y = 3x + -5

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3 years ago

Solve the proportion -- 33/6 = 55/z

AysviL [449]

33 = 55
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3 years ago

If there is a $50 profit on the large cabinets and a $30 profit on the small cabinets.

Elden [556K]

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3 years ago

Anet has $120.if she saves $20 per week, in how many days will she have $500

Alina [70]

So start of by making the equation 500=120+20x. x is representing the number of weeks. Solve for x by subtracting 120 from both sides (380=20x). Now divide both sides by 20 (19=x). You know it will take 19 weeks; however, the question asks how many days. Since there are 7 days in a week, just multiple 7x19. The answer is 133 days.

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3 years ago