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3 years ago

Write the expression below as a product of two factors. -12p + 6y - 24

Mathematics

1 answer:

MariettaO [177]3 years ago

5 0

Answer:

− 6 ( 2 p − y + 4 )

Step-by-step explanation:

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Please help being timed for test !

balu736 [363]

Answer:

I think it B or C but hope I can help :)

Step-by-step explanation:

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3 years ago

Find the solution of the given initial value problem. ty' + 2y = sin t, y π 2 = 9, t > 0 y(t) =

Helen [10]

For the ODE

$ty'+2y=\sin t$

multiply both sides by t so that the left side can be condensed into the derivative of a product:

$t^2y'+2ty=t\sin t$

$\implies(t^2y)'=t\sin t$

Integrate both sides with respect to t :

$t^2y=\displaystyle\int t\sin t\,\mathrm dt=\sin t-t\cos t+C$

Divide both sides by $t^2$ to solve for y :

$y(t)=\dfrac{\sin t}{t^2}-\dfrac{\cos t}t+\dfrac C{t^2}$

Now use the initial condition to solve for C :

$y\left(\dfrac\pi2\right)=9\implies9=\dfrac{\sin\frac\pi2}{\frac{\pi^2}4}-\dfrac{\cos\frac\pi2}{\frac\pi2}+\dfrac C{\frac{\pi^2}4}$

$\implies9=\dfrac4{\pi^2}(1+C)$

$\implies C=\dfrac{9\pi^2}4-1$

So the particular solution to the IVP is

$y(t)=\dfrac{\sin t}{t^2}-\dfrac{\cos t}t+\dfrac{\frac{9\pi^2}4-1}{t^2}$

$y(t)=\dfrac{4\sin t-4t\cos t+9\pi^2-4}{4t^2}$

6 0

3 years ago

Can someone help meWhat is the missing numerator?

galina1969 [7]

Answer:

d 2

Step-by-step explanation:

x/7 +13/14 = 17/14

double the first one so all the denominators are the same

2x/14+13/14=17/14

then subtract the second fraction from the thrid

2x/14=4/14

then we can divide by two so we are back to 7 as the demoninator

x/7=2/7

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3 years ago

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A ticket selling company charges a service charge of $4 to buy tickets.

laiz [17]

Answer=D, Y=55x + 4. This is the answer.......

Btw: this is my first answer I done ;)

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2 years ago

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What is the solution of the system? Use any method.

Bad White [126]

Answer:

Step-by-step explanation:

-3,2

thats the answer your welcome

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3 years ago

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