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barxatty [35]
3 years ago
5

What is the awnser to this question

Mathematics
1 answer:
Alborosie3 years ago
4 0

Answer is A and C because they equal to 3(10-c)

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Which expression is equivalent to n+n+n+n? pick outta these A n4 B 4n C4n to the power of 4 D n+4
labwork [276]

Answer:

B

Step-by-step explanation:

3 0
3 years ago
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How does this equation: 1+-✓17/-4 equal -1+-✓17/4.
maxonik [38]
These are not equal.
Try  checking  it out. using ur calculator 
8 0
3 years ago
Find the time required for an investment of 5000 dollars to grow to 8300 dollars at an interest rate of 7.5
Nutka1998 [239]

Answer:

1.60 (rounded)

Step-by-step explanation:

I haven't done this in a while but you'd use the compound interest formula a=p(1+r)^n where a=8300 p=5000 r=0.075 and solve for n

4 0
3 years ago
Please help and hurry <br><br> it’s not the one i picked
aev [14]
Using the Pythargorean theoem

a^2 + b^2 = c^2

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5 0
4 years ago
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Use Lagrange multipliers to find the volume of the largest rectangular box in the first octant with three faces in the coordinat
dimaraw [331]

I assume the given plane has equation

<em>x</em> + 3<em>y</em> + 4<em>z</em> = <em>d</em>

for some constant <em>d</em> ≠ 0.

You want to maximize the function <em>V(x, y, z)</em> = <em>xyz</em> subject to the above constraint. The Lagrangian would be

<em>L(x, y, z, λ)</em> = <em>xyz</em> - <em>λ</em> (<em>x</em> + 3<em>y</em> + 4<em>z</em> - <em>d</em>)

Find its critical points:

∂<em>L</em>/∂<em>x</em> = <em>yz</em> - <em>λ</em> = 0

∂<em>L</em>/∂<em>y</em> = <em>xz</em> - 3<em>λ</em> = 0

∂<em>L</em>/∂<em>z</em> = <em>xy</em> - 4<em>λ</em> = 0

∂<em>L</em>/∂<em>λ</em> = <em>x</em> + 3<em>y</em> + 4<em>z</em> - <em>d</em> = 0

The first three equations tell you that <em>λ</em> = <em>yz</em> = <em>xz</em>/3 = <em>xy</em>/4. Then, for instance,

<em>yz</em> = <em>xz</em>/3   →   3<em>yz</em> - <em>xz</em> = <em>z</em> (3<em>y</em> - <em>x</em>) = 0   →   <em>z</em> = 0   <u>or</u>   3<em>y</em> - <em>x</em> = 0

If <em>z</em> = 0, we get zero volume which is not useful. So 3<em>y</em> = <em>x</em>. Similarly, you would find <em>x</em> = 4<em>z</em> and 3<em>y</em> = 4<em>z</em>, so a critical point occurs when <em>x</em> = 3<em>y</em> = 4<em>z</em>.

In the fourth equation, we get upon substituting

<em>x</em> + 3<em>y</em> + 4<em>z</em> = 3<em>x</em> = <em>d</em>   →   <em>x</em> = <em>d</em>/3, <em>y</em> = <em>d</em>/9, <em>z</em> = <em>d</em>/12

Then the largest volume of this box would be

<em>V(d</em>/3, <em>d</em>/9, <em>d</em>/12<em>)</em> = <em>d</em> ³ / 324

6 0
3 years ago
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