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Anestetic [448]
3 years ago
9

Write a power that has a value greater than 140 and less than 145.

Mathematics
1 answer:
Pachacha [2.7K]3 years ago
3 0

Answer:

12^{2}

Step-by-step explanation:

To find: a power that has a value greater than 140 and less than 145

Solution:

Take x=12^{2}

Here,

12^{2}=144 and 140

That is 140

Therefore,

12^{2} has a value greater than 140 and less than 145.

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Let width = w
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A=600w-(3/2)*w^2
If I set A=0 to find the roots, the maximum will be at wmax=-b/2a which is exactly 1/2 way between the roots-(3/2)*w^2+600w=0
-b=-600
2a=-3
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And, since 3w+2l=1200
3*200+2l=1200
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check answer:
3w+2l=1200
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1200=1200
and A=w*l
A=200*300
A=60000 ft2
To see if this is max area change  w and l slightly but still make 3w+2l=1200 true, like
w=200.1
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A=299.85*200.1
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