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damaskus [11]
3 years ago
12

Help appreciated!! (Will mark as Brainliest)

Mathematics
1 answer:
Vinvika [58]3 years ago
7 0

Answer:

14.9

Step-by-step explanation:

First you square 14 which is 196, then you square 5 which is 25. You would then add them which is 221. You find the square root of 221, that is 14.8660687473 . The answer says to round to the nearest tenth which becomes 14.9.

Hope this helps:)

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Step-by-step explanation:

(x-6) (x-4)

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= x^2 -10x + 24

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irinina [24]

Answer:

hiii

your answer is option d

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F(x)=-x^2+8x+15 ...?
rusak2 [61]
Here i how I would do it:<span>f(x)=−<span>x2</span>+8x+15</span>
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So these are the points at which the graph crosses the x-axis. To find the point where it crosses the y-axis, set x=0 in your original equation to get 15. Now because of the negative on the x^2, your graph will be an upside down parabola, going through<span>(0,15),(4−<span>31<span>−−</span>√</span>,0)and(4+<span>31<span>−−</span>√</span>,0)</span>
To find the coordinates of the maximum (it is maximum) of the graph, you take a look at the completed square method above. Since we multiplied through by -1, we need to multiply through by it again to get:<span>f(x)=31−(x−4<span>)2</span></span><span>
Now this is maximal when x=4, because x=4 causes -(x-4)^2 to vanish. So the coordinates of the maximum are (4,y). To find the y, simply substitute x=4 into the equation f(x) to give y = 31. So it agrees with the mighty Satellite: (4,31) is the vertex.</span>
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BigorU [14]
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