Help me.what is the answer?

Mathematics

2 answers:

kolbaska11 [484]3 years ago

3 0

Answer:

I believe its 1.5

Step-by-step explanation:

Hope it helps srry if im wrong.

Sonbull [250]3 years ago

3 0

Answer:

which principle prevents a brach from abusing its power

Step-by-step explanation:

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Which of the following values has 3 significant figures?

Wittaler [7]

Answer: D. al of the above

Step-by-step explanation:

the numbers 1-7 are the significant figures, and if there is a zero but still three numbers ranging from 1-7, it counts

4 0

3 years ago

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Find the value of kk for which the constant function x(t)=kx(t)=k is a solution of the differential equation 5t3dxdt+2x−2=05t3dx

uranmaximum [27]

Given the differential equation

$5t^3 \frac{dx}{dt} +2x-2=0$

The solution is as follows:

$5t^3 \frac{dx}{dt} +2x-2=0 \\ \\ \Rightarrow5t^3 \frac{dx}{dt} =2-2x \\ \\ \Rightarrow \frac{5}{2-2x} dx= \frac{1}{t^3} dt \\ \\ \Rightarrow \int {\frac{5}{2-2x} } \, dx = \int {\frac{1}{t^3}} \, dt \\ \\ \Rightarrow- \frac{5}{2} \ln(2-2x)=- \frac{1}{2t^2} +A \\ \\ \Rightarrow\ln(2-2x)= \frac{1}{5t^2} +B\\ \\ \Rightarrow2-2x=Ce^{\frac{1}{5t^2}} \\ \\ \Rightarrow 2x=Ce^{\frac{1}{5t^2}}+2 \\ \\ \Rightarrow x=De^{\frac{1}{5t^2}}+1$