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scZoUnD [109]
3 years ago
15

Please answer thx u very much

Mathematics
1 answer:
stiks02 [169]3 years ago
4 0
She could do 120 on 2 sides then 90 on the other 2 sides hope this helps! :D
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i was supposed to be on a bus, but there was a lady with a chicken on there. what is this, like, guatemala? what the hell? leave
dsp73

lol thats interesting.

4 0
3 years ago
Find the general solution of the following ODE: y' + 1/t y = 3 cos(2t), t > 0.
Margarita [4]

Answer:

y = 3sin2t/2 - 3cos2t/4t + C/t

Step-by-step explanation:

The differential equation y' + 1/t y = 3 cos(2t) is a first order differential equation in the form y'+p(t)y = q(t) with integrating factor I = e^∫p(t)dt

Comparing the standard form with the given differential equation.

p(t) = 1/t and q(t) = 3cos(2t)

I = e^∫1/tdt

I = e^ln(t)

I = t

The general solution for first a first order DE is expressed as;

y×I = ∫q(t)Idt + C where I is the integrating factor and C is the constant of integration.

yt = ∫t(3cos2t)dt

yt = 3∫t(cos2t)dt ...... 1

Integrating ∫t(cos2t)dt using integration by part.

Let u = t, dv = cos2tdt

du/dt = 1; du = dt

v = ∫(cos2t)dt

v = sin2t/2

∫t(cos2t)dt = t(sin2t/2) + ∫(sin2t)/2dt

= tsin2t/2 - cos2t/4 ..... 2

Substituting equation 2 into 1

yt = 3(tsin2t/2 - cos2t/4) + C

Divide through by t

y = 3sin2t/2 - 3cos2t/4t + C/t

Hence the general solution to the ODE is y = 3sin2t/2 - 3cos2t/4t + C/t

3 0
3 years ago
HURRY PLEASE Which function is the inverse of f(x) = -5x – 4?
vagabundo [1.1K]

Answer:

f^-1(x)= -x/5 - 4/5

Step-by-step explanation:

7 0
2 years ago
Simplify. (-8n + 11) + (2n -3)
Rasek [7]

Answer:

-6n + 8

Step-by-step explanation:

-8n + 2n = -6n

11 - 3 = 8

Hope this helps :)

4 0
3 years ago
Read 2 more answers
How do you know which one it is?
Montano1993 [528]
<h2>B is the correct answer!</h2><h3>(There's a chance I might be wrong.)</h3><h3></h3><h3>You have to rotate the shape by 180 degrees to get the other shape. (Sorry, I'm not good at explaining.)</h3><h3></h3><h3><em>Please let me know if I am wrong.</em></h3>
8 0
2 years ago
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