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Umnica [9.8K]
3 years ago
8

True or false 6 and 7

Mathematics
2 answers:
zysi [14]3 years ago
6 0
6 is false, 7 is true. 
matrenka [14]3 years ago
4 0
6 is false, 7 is true. 
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What is the process of changing from one form to another
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A parabola can be drawn given a focus of
Volgvan

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y=-\frac{1}{4}(x-2)^{2}+9

Step-by-step explanation:

Any point on a given parabola is equidistant from focus and directrix.

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(x-2)^{2}+(y-8)^{2}=(y-10)^{2}\\(x-2)^{2}=(y-10)^{2}-(y-8)^{2}\\(x-2)^{2}=(y-10+y-8)(y-10-(y-8))...............[\because a^{2}-b^{2}=(a+b)(a-b)]\\(x-2)^{2}=(2y-18)(y-10-y+8)\\(x-2)^{2}=2(y-9)(-2)\\(x-2)^{2}=-4(y-9)\\y-9=-\frac{1}{4}(x-2)^{2}\\y=-\frac{1}{4}(x-2)^{2}+9

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This is old work i forget how to do it
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plz leave a like and brainlest!! i need 10 to ask a quistion!!!

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circumference = PI * diameter = PI * 20 = <span> <span> <span> 62.83</span></span></span>


3 0
3 years ago
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