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Doss [256]
3 years ago
9

-36 divided by (-12).

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
4 0

Answer:

-3

Step-by-step explanation:

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This is hard for me can anyone help me? 9
Kazeer [188]

Answer: -12.8x-20y+8.4

Step-by-step explanation: I multiplied the numbers in parentheses by 4.

5 0
3 years ago
What is the percent of increase from 55 to 66?<br><br> PLEASE HURRY
svp [43]

Answer:

(final - initial/initial ) * 100

66 - 55/55 * 100

11/55 * 100

100/5

= 20 percent

5 0
3 years ago
Read 2 more answers
Given the Homogeneous equation x^2ydy+xy^2dx=0, use y=ux, u=y/x and dy=udx+xdu to solve the differential equation. Solve for y.
scZoUnD [109]

Answer:

y=\frac{C}{x}.

Step-by-step explanation:

Given homogeneous equation

x^2ydy+xy^2dx=0

\frac{\mathrm{d}y}{\mathrm{d}x}=-\frac{xy^2}{x^2y}

Substitute y=ux , u=\frac{y}{x}

\frac{\mathrm{d}y}{\mathrm{d}x}=-\frac{y}{x}

Now,

u+x\frac{\mathrm{d}u}{\mathrm{d}x}=\frac{\mathrm{d}y}{\mathrm{d}x}

u+x\frac{\mathrm{d}u}{\mathrm{d}x}=-u

\frac{\mathrm{d}u}{\mathrm{d}x}=-2u

\frac{du}{u}=-\frac{dx}{x}

Integrating both side we get

lnu=-2lnx+lnC

Where lnC= integration constant

lnu+ln{x}^2=lnC

lnux^2=lnC

Cancel ln on both side

ux^2=C

Substitute u=\frac{y}{x}

Then we get

xy=C

y=\frac{C}{x}.

Answer:y=\frac{C}{x}.

8 0
3 years ago
PLZ HELP ASAP SOLVE SIMMILAR TRIANGLES (BASIC)
GuDViN [60]

<span>By similarity of triangles we have the following relationship:</span>

<span> (x) / (6) = (18) / (9)</span>

<span> Simplifying we have:</span>

<span> (x) / (6) = 2</span>

<span> Clearing the value of x we have:</span>

<span><span> x = 6 * 2</span></span>

<span><span> X = 12</span></span>

<span><span> Answer:</span></span>

<span><span> The value of x for this case is equal to:</span></span>

<span><span> <span>X = 12</span></span>
</span>

5 0
4 years ago
Solve these arithmetic: 2.75+0.003+0.158 =
olganol [36]
First, let's add 2.75 + 0.158.  First, we add the thousandths places.  Now, we have 2.758 + 0.15.  Next, let's add the hundredths place.  This is equal to 2.808+0.1.  Finally, we have the tenths place.  Now, our number is 2.908.

To finish this problem, we add 0.003.  2.908 + 0.003 = 2.911, so 2.911 is the answer to this problem.
3 0
3 years ago
Read 2 more answers
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