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Dmitry_Shevchenko [17]
3 years ago
9

PLEASE HELPPP ME FASTTTTT WILL MARK THE BRAINLIESTT ANSWER!! :(80 points)

Mathematics
2 answers:
Dafna11 [192]3 years ago
7 0

Answer:

Let's solve for x.

x+y≥4+3

Step 1: Add -y to both sides.

x+y+−y≥7+−y

x≥−y+7

Answer:

x≥−y+7

lutik1710 [3]3 years ago
6 0

Answer:

x≥−y+7

Step-by-step explanation:

x+y≥4+3

then

x+y+−y≥7+−y

simplify to:

x≥−y+7

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4> Solve by using Laplace transform: y'+5y'+4y=0; y(0)=3 y'(o)=o
harina [27]

Answer:

y=3e^{-4t}

Step-by-step explanation:

y''+5y'+4y=0

Applying the Laplace transform:

\mathcal{L}[y'']+5\mathcal{L}[y']+4\mathcal{L}[y']=0

With the formulas:

\mathcal{L}[y'']=s^2\mathcal{L}[y]-y(0)s-y'(0)

\mathcal{L}[y']=s\mathcal{L}[y]-y(0)

\mathcal{L}[x]=L

s^2L-3s+5sL-3+4L=0

Solving for L

L(s^2+5s+4)=3s+3

L=\frac{3s+3}{s^2+5s+4}

L=\frac{3(s+1)}{(s+1)(s+4)}

L=\frac3{s+4}

Apply the inverse Laplace transform with this formula:

\mathcal{L}^{-1}[\frac1{s-a}]=e^{at}

y=3\mathcal{L}^{-1}[\frac1{s+4}]=3e^{-4t}

7 0
3 years ago
What is 4567+7845= idk what it is please help me lol so what is it????
Dmitry_Shevchenko [17]

Answer:

12412

Step-by-step explanation:

math

6 0
3 years ago
Read 2 more answers
Help me pls guys pls
makkiz [27]

Answer: 55 cubic units

Step-by-step explanation:

5 0
3 years ago
Math math math!!!! :/
vekshin1

the answer is B your welcome

6 0
3 years ago
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Resolver con proceso 3√256−3√16+3√54​
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