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Luba_88 [7]
3 years ago
13

Given that f(x)= 9x^2-180, find x

Mathematics
1 answer:
hoa [83]3 years ago
3 0
9x^{2}  - 180 = 0

9x^{2}  = 180

Divide both sides by 9

 x^{2} = 20

Square root both sides, and you get

x =  \sqrt{20} --\ \textgreater \  simplified: 2 \sqrt{5}
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katen-ka-za [31]

1. Points that lie on the intersection area of the inequalities are solutions.

For example (0,2), (-4,4), (2,-1), (-8,0) and all others which lie in this area.

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7 0
3 years ago
What is the measure of angle 6, to the nearest degree?<br> 81°<br> 90<br> 99°<br> 105°
Kaylis [27]

Answer: 99

Step-by-step explanation:

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6 0
2 years ago
at a building site there are 16 pallets with sacks of cement. The total weight of all the pallets and cement is 4,856 pounds. Ea
Neporo4naja [7]

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6 0
3 years ago
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kakasveta [241]

Answer:

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Hope this helps


8 0
3 years ago
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