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myrzilka [38]
3 years ago
7

Find in degrees the numeric value of the acute angle of rotation that eliminates the product term from the equation 7x2+24xy−34x

+24y−185=07x2+24xy−34x+24y−185=0​
Mathematics
1 answer:
lutik1710 [3]3 years ago
4 0

Rotating the graph of Ax^2+Bxy+Cy^2+Dx+Ey+F=0 with B\ne0 counterclockwise by \theta eliminates the xy term, where \cot2\theta=\frac{A-C}{B}. Plugging in, we have \cot2\theta=\frac{7}{24}, since C=0. Solving, we have \theta=\frac{1}{2}\cot^{-1}(\frac{7}{24})\approx\boxed{36.9^\circ}.

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gulaghasi [49]

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Answer:

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Step-by-step explanation:

A proportion says the ratio of one thing to another is the same for different amounts. Here, we want cups, so we can use the proportion ...

  cups/people = 2/12 = x/15 . . . . . where x is the number we want to find

Multiplying by 15 gives ...

  x = 15(2/12) = 5/2 = 2 1/2

You will need 2 1/2 cups of zucchini to feed 15 people with the same recipe.

6 0
3 years ago
This means that each point where the two lines intersect is a
Norma-Jean [14]

Answer: When two or more lines cross each other in a plane, they are called intersecting lines. The intersecting lines share a common point, which exists on all the intersecting lines, and is called the point of intersection. Here, lines P and Q intersect at point O, which is the point of intersection.

I think this the answer‍♀️

8 0
3 years ago
How do you solve x-y=1 ; x+y=3. Please Explain
KIM [24]
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x-y=1
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x=y+1
So now you have the equation for x.  All you have to do is substitute it into the other:
x=y+1
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Now that you have the value of one, substitute it into either of the equations to find x.
If you put it in the first:
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8 0
3 years ago
Read 2 more answers
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Bezzdna [24]

Answer:

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Hope this helps you.

4 0
3 years ago
Which equation results from isolating a radical term and squaring both sides of the equation for the equation
astraxan [27]

Answer:

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Step-by-step explanation:

Given

\sqrt{c-2} - \sqrt c = 5

Required

Isolate radical, then square both sides

We have:

\sqrt{c-2} - \sqrt c = 5

Isolate radical

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Square both sides

(\sqrt{c - 2})^2 = (5 + \sqrt c)^2

c - 2 = 25 + 2 * 5 * \sqrt c + c

c - 2 = 25 + 10 \sqrt c + c

8 0
3 years ago
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