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Drupady [299]
3 years ago
14

A parallelogram has side length of 9x+12 and 3x-4.what is the perimeter ?

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
7 0
2(9x+12) + 2(3x-4)
because there are four sides, and it is a parallelogram, the opposite sides are equal. the answer is 24x+16
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There were 58 adults who completed the 16-mile charity bike ride. There were 65 children who completed the 10-mile charity bike
TiliK225 [7]
58*16= 928 (total adult miles)
65*10= 650 (total children miles)
Add them together to get the total distance travelled= 928+650= 1578 miles

Hope this helps! :)
3 0
3 years ago
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Perform the following mathematical operation, and report the answer to the correct umber of significant figures 7.125*8.00
creativ13 [48]

Answer:23☺️

Step-by-step explanation:

4 0
3 years ago
Solve the following initial-value problem, showing all work, including a clear general solution as well as the particular soluti
Vikki [24]

Answer:

General Solution is y=x^{3}+cx^{2} and the particular solution is  y=x^{3}-\frac{1}{2}x^{2}

Step-by-step explanation:

x\frac{\mathrm{dy} }{\mathrm{d} x}=x^{3}+3y\\\\Rearranging \\\\x\frac{\mathrm{dy} }{\mathrm{d} x}-3y=x^{3}\\\\\frac{\mathrm{d} y}{\mathrm{d} x}-\frac{3y}{x}=x^{2}

This is a linear diffrential equation of type

\frac{\mathrm{d} y}{\mathrm{d} x}+p(x)y=q(x)..................(i)

here p(x)=\frac{-2}{x}

q(x)=x^{2}

The solution of equation i is given by

y\times e^{\int p(x)dx}=\int  e^{\int p(x)dx}\times q(x)dx

we have e^{\int p(x)dx}=e^{\int \frac{-2}{x}dx}\\\\e^{\int \frac{-2}{x}dx}=e^{-2ln(x)}\\\\=e^{ln(x^{-2})}\\\\=\frac{1}{x^{2} } \\\\\because e^{ln(f(x))}=f(x)]\\\\Thus\\\\e^{\int p(x)dx}=\frac{1}{x^{2}}

Thus the solution becomes

\tfrac{y}{x^{2}}=\int \frac{1}{x^{2}}\times x^{2}dx\\\\\tfrac{y}{x^{2}}=\int 1dx\\\\\tfrac{y}{x^{2}}=x+cy=x^{3}+cx^{2

This is the general solution now to find the particular solution we put value of x=2 for which y=6

we have 6=8+4c

Thus solving for c we get c = -1/2

Thus particular solution becomes

y=x^{3}-\frac{1}{2}x^{2}

5 0
3 years ago
-x + 2 = x+4<br> help please!
Savatey [412]

Answer:

x=-2

Step-by-step explanation:

hope this helps

follow me

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3 years ago
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do u have any answer choices ??

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