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3 years ago

Alguem me ajudapor favor

Mathematics

1 answer:

andre [41]3 years ago

6 0

Answer:

sorry I'm confused boy sorryy

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What is the inequality x+5<2

Vlad [161]

Answer:

x < - 3

Step-by-step explanation:

Given

x + 5 < 2 ( subtract 5 from both sides )

x < - 3

8 0

3 years ago

Read 2 more answers

Given cos A=

AURORKA [14]

Answer:

ndkndksndssjsjsjsjsjs nsj

Step-by-step explanation:

8 0

2 years ago

If y=e5t is a solution to the differential equation

a_sh-v [17]

Answer:

k = 30, $y(t) = C_1e^{5t}+C_2e^{6t}$

Step-by-step explanation:

Since $y=e^{5t}$ is a solution, then it must satisfy the differential equation. So, we calculate the derivatives and replace the value in the equation. We have that

$\frac{d^2y}{dt^2} = 25 e^{5t},\frac{dy}{dt} = 5e^{5t}$

Then, replacing the derivatives in the equation we have:

$25e^{5t}-11(5)e^{5t}+ke^{5t}=0 e^{5t}(25-55+k) =0$

Since $e^{5t}$ is a positive function, we have that

$25-55+k = 0 \rightarrow k = 30$ .

Now, consider a general solution $y(t) = Ae^{rt}, A \in \mathbb{R}$ , then, by calculating the derivatives and replacing them in the equation, we get

$Ae^{rt}(r^2-11r+30)=0$

We already know that r=5 is a solution of the equation, then we can divide the polynomial by the factor (r-5) to the get the other solution. If we do so, we get that (r-6)=0. So the other solution is r=6.

Therefore, the general solution is

$y(t) = C_1e^{5t}+C_2e^{6t}$

8 0

3 years ago

I need help please will mark the brainliest

jok3333 [9.3K]

Answer:

i cant seee the picture

Step-by-step explanation:

can u retake it

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3 years ago

A cylindrical water tank is 1.2 meters high and has a diameter of 4.6 meters. Approximately how much cubic meters of water will

uranmaximum [27]

So what you need to do is find the volume and divide it by 2.

6 0

2 years ago

Read 2 more answers

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