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natima [27]
3 years ago
11

COMMON CORE REVIEW

Mathematics
1 answer:
masha68 [24]3 years ago
7 0

Answer:

146.9

Step-by-step explanation:

I'm not sure of the answer but if I'm wrong tell me I'll continue trying it is a pleasure to help you.

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Please help me with these questions! I have to show work and complete all of this but I'm confused. It is due at 11:59 please he
worty [1.4K]

The answer is in the image. Good luck!

7 0
3 years ago
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What is the difference between bernoulii equation and riccati equation
melisa1 [442]
The Bernoulli equation is almost identical to the standard linear ODE.

y'=P(x)y+Q(x)y^n

Compare to the basic linear ODE,

y'=P(x)y+Q(x)

Meanwhile, the Riccati equation takes the form

y'=P(x)+Q(x)y+R(x)y^2

which in special cases is of Bernoulli type if P(x)=0, and linear if R(x)=0. But in general each type takes a different method to solve. From now on, I'll abbreviate the coefficient functions as P,Q,R for brevity.

For Bernoulli equations, the standard approach is to write

y'=Py+Qy^n
y^{-n}y'=Py^{1-n}+Q

and substitute v=y^{1-n}. This makes v'=(1-n)y^{-n}y', so the ODE is rewritten as

\dfrac1{1-n}v'=Pv+Q

and the equation is now linear in v.

The Riccati equation, on the other hand, requires a different substitution. Set v=Ry, so that v'=R'y+Ry'=R'\dfrac vR+Ry'. Then you have

y'=P+Qy+Ry^2
\dfrac{v'-R'\dfrac vR}R=P+Q\dfrac vR+R\dfrac{v^2}{R^2}
v'=PR+\left(Q+\dfrac{R'}R\right)v+v^2

Next, setting v=\dfrac{u'}u, so that v'=\dfrac{uu''-(u')^2}{u^2}, allows you to write this as a linear second-order equation. You have

\dfrac{uu''-(u')^2}{u^2}=PR+\left(Q+\dfrac{R'}R\right)\dfrac{u'}u+\dfrac{(u')^2}{u^2}
u''-\left(Q+\dfrac{R'}R\right)u'+PRu=0
u''+Su'+Tu=0

where S=-\left(Q+\dfrac{R'}R\right) and T=PR.
3 0
3 years ago
I need to know the answer to this
scoundrel [369]
The answer is x=−1.3125

I hope this helps. 

Have a "AWESOME" day! :)
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8 0
3 years ago
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Whats the answer to this problem h/5&gt;1
Papessa [141]
\dfrac{h}{5}>1\\&#10;h>5
7 0
3 years ago
The Carson family saved up $39,580 for a new home. The cost their dream home is 10 times as much as they have saved. How much th
sattari [20]

Answer:

$395,800

Step-by-step explanation:

10 times as much as they have saved is 10 times $39,580

10 times 39,580 is  10*39,580 = 395,800

So their dream home costs $395,800

8 0
3 years ago
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