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3 years ago

Can anyone help with this?

Mathematics

1 answer:

IgorLugansk [536]3 years ago

6 0

Answer:

20.25

Step-by-step explanation:

If you add them in way then that’s the answer

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ANSWER CORRECTLY PLEASE

Harlamova29_29 [7]

Answer:

88/4 and 48/4

Step-by-step explanation:

88 + 48 = 136

136/4 = 34

5 0

3 years ago

Help me on the Elizabeth problem please

EastWind [94]

4 big mice and 3 small mice because 4 X 25=100; 3 X 10=30

100+30=130

is that right?

4 0

3 years ago

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

La expresion 18+2^3 / 4x2

erik [133]

18+8/4x2
18+8/8
18+1
PEMAS
parentheses,

7 0

3 years ago

14 is 56% of what number

Sedbober [7]

7.84 <span> 56% off 14 is equal to (56 x 56) / 100 </span>

8 0

3 years ago

Read 2 more answers