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MaRussiya [10]
4 years ago
10

Please help...trying to help my son with Alegebra, but it's been 30 years.

Mathematics
1 answer:
xz_007 [3.2K]4 years ago
7 0
Wait it says ur in high school so u can't be over 30. that isn't possible. So what's the problem here? not good at math.
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irina [24]

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Principal $58.50
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The volume of a gas V held at a constant temperature in a closed container varies inversely with its pressure P. If the volume o
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3 years ago
You have a 1200-foot roll of fencing and a large field. you want to make two paddocks by splitting a rectangular enclosure in ha
romanna [79]
Let width = w
Let length = l
Let area = A
3w+2l=1200
2l=1200-3w
l=1200-3/2
A=w*l
A=w*(1200-3w)/2
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
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-600/-3=200
w=200
And, since 3w+2l=1200
3*200+2l=1200
2l = 600
l = 300
The dimensions of the largest enclosure willbe when width = 200 ft and length = 300 ft
check answer:
3w+2l=1200
3*200+2*300=1200
600+600=1200
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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8 0
4 years ago
Geometry Math
Ghella [55]

Answer:

The. angle is 72 and the supplement is 108

Step-by-step explanation:

Supplementary agnles are two angles with a sum of 180. So for example, two right angles would be supplementary.

Once again lets break this down by putting it into an equation. The supplement will be x. We know that 180 - x ( the supplement) will be equal to the angle but the angle is 2/3 the supplement.

Your equation should look like this x = 2/3 (180 - x).

Then we're going to multiply both sides by 3 to get 3x = 2 (180 - x)

You should distribute the 2 on the right side to then get 3x = 360 - 2x

You want to get x by itself but you can't make it just disappear because you need to keep your equation balanced. You're going to need to add 2x to both sides making your equation 5x = 360.

then you're going to divide 360 by 5 to get x = 72

subtract 72 (your angle) from 180 to get 108 which is your supplement.

If it's a bit confusing feel free to msg me and I'll do my best to explain it a bit better ^^;

3 0
3 years ago
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