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icang [17]
2 years ago
14

Your teacher finds a catalog that sells posters for $2 each. There is an additional charge of $4 to ship and order. Suppose that

your class paid $54 for posters.
Mathematics
1 answer:
mixer [17]2 years ago
8 0
This question isn’t finished. Please finish typing it out ❤️
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Hitman42 [59]

Answer: i dont see a thing yur thing isnt

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Step-by-step explanation:

6 0
3 years ago
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Suppose a tub has the shape of an elliptical paraboloid given by z = ax2+by2 (where a, b are some positive constants). If a marb
Umnica [9.8K]

Answer:

It would roll in this direction.

\nu  =  (-a/\sqrt{a^2+b^2},-b/\sqrt{a^2+b^2})

Step-by-step explanation:

It would roll to the direction of maximum decrease, which is the -1 times the direction of maximum increase, which is given by the gradient of the function.  

Since  

z =  ax^2  + by^2

For this case, the gradient of your function would be

\nabla z  = (2ax , 2by)

And  -1  times the gradient of your function would be

-\nabla z  = (-2ax , -2by)\\

Then, at

 (1,1,a+b),\\x = 1 \\y = 1

So it would go towards

v = (-2a,-2b)

The magnitud of that vector is

|v| =  2\sqrt{a^2+b^2}

and to conclude it would roll in this direction.

\nu  =  (-a/\sqrt{a^2+b^2},-b/\sqrt{a^2+b^2})

6 0
3 years ago
Find the roots. 2x ^2 + 4x - 5 =0
Vinvika [58]
Literally the roots equal 0. Is that “X” or the multiplication sign? Because I did it with “X” and it gave me “0”
5 0
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How do you solve the equation (X+3)^3=81
solmaris [256]
(x+3)^3=81\\
x+3=\sqrt[3]{81}\\
x+3=3\sqrt[3]3\\
x=3\sqrt[3]3-3\\

4 0
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How do you write the equation 0=x+1 in standard form
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Answer:

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Step-by-step explanation:

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