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11111nata11111 [884]
2 years ago
9

Tell whether the ratios form a proportion.

Mathematics
1 answer:
hoa [83]2 years ago
3 0
Yes
9:3- 3:1
45:15 - 3:1
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Wich expression can be used to find the slope of a line containing the points (-3,2) and (7,-1)
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A(x_1;\ y_1);\ B(x_2;\ y_2)\\\\\text{The slope:}\ m=\dfrac{y_2-y_1}{x_2-x_1}


\text{We have:}\\(-3;\ 2)\to\ x_1=-3;\ y_1=2\\(7;\ -1)\to x_2=7;\ y_2=-1

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For area, just multiply the length x width
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Answer: y ≥ -2    Interval Notation: [-2, ∞)

<u>Step-by-step explanation:</u>

If the domain is x ≥ 0, then plug x=0 into the given equation to find the y ≥ value.

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Step-by-step explanation:


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