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KengaRu [80]
3 years ago
5

The width w of a rectangular swimming pool is x+4. the area a of the pool is x^3-13x+12. What is an expression for the length of

the pool
X^2+4x+3
X^2-4x-3
X^2-4x+3
X^2+4x-3

Mathematics
2 answers:
Ymorist [56]3 years ago
6 0

Answer:

Step-by-step explanation:

Orlov [11]3 years ago
3 0

Answer: x² - 4x + 3.

Step-by-step explanation:

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y = \stackrel{\stackrel{m}{\downarrow }}{-\cfrac{2}{3}}x+6\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

so hmmm then we know the slope of that line is -2/3, so we're really looking for the point-slope form of a line with a slope of -2/3 and that passes through (-3 , 8)

(\stackrel{x_1}{-3}~,~\stackrel{y_1}{8})\hspace{10em} \stackrel{slope}{m} ~=~ -\cfrac{2}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{8}=\stackrel{m}{-\cfrac{2}{3}}(x-\stackrel{x_1}{(-3)})\implies y-8=-\cfrac{2}{3}(x+3)

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Save $300 a month or $3,600 per year for their children education ​
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This is supposed to be a question…????
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Katya treated everyone in theater to a pizza party. She bought 12 pizzas and six 2-liters of soda. The bill was $137.64 (before
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let the price of pizza and soda( per 2 litre bottle) be x and y

from 1st condition

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from 2nd condition

x+y =11.95.......(2)

multiply eq. (2) by 2

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subtracting (1) and (3)

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10x = 113.7

x=113.7/10

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2(11.37)+2y=23.9

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So the prices of  the pizza and soda are 11.37 and 0.6 dollars.

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Answer:

Jane found multiples of 8.

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