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3 years ago

What is the answer

Mathematics

1 answer:

Mariana [72]3 years ago

8 0

Answer:

3x² + 6

Step-by-step explanation:

i think?

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if Point p is located on the segment between point A (1,4) and point D (7,13) . The distance from A to P is twice the distance f

Sloan [31]

Answer:

P (5 , 10)

Step-by-step explanation:

point A (1,4) and point D (7,13), AP/PD = 2:1

P (x,y) : x = x₁ + (a/(a+b) * (x₂-x₁)) y = y₁ + (a/(a+b) * (y₂-y₁)) .... a=2 b=1

x = 1 + 2/(2+1) * (7-1) = 5

y = 4 + 2/(2+1) * (13-4) = 10

P (5 , 10)

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3 years ago

Use variation of parameters to find a general solution to the differential equation given that the functions y1 and y2 are linea

Aleks [24]

Recall that variation of parameters is used to solve second-order ODEs of the form

y''(t) + p(t) y'(t) + q(t) y(t) = f(t)

so the first thing you need to do is divide both sides of your equation by t :

y'' + (2t - 1)/t y' - 2/t y = 7t

You're looking for a solution of the form

$y=y_1u_1+y_2u_2$

where

$u_1(t)=\displaystyle-\int\frac{y_2(t)f(t)}{W(y_1,y_2)}\,\mathrm dt$

$u_2(t)=\displaystyle\int\frac{y_1(t)f(t)}{W(y_1,y_2)}\,\mathrm dt$

and W denotes the Wronskian determinant.

Compute the Wronskian:

$W(y_1,y_2) = W\left(2t-1,e^{-2t}\right) = \begin{vmatrix}2t-1&e^{-2t}\\2&-2e^{-2t}\end{vmatrix} = -4te^{-2t}$

Then

$u_1=\displaystyle-\int\frac{7te^{-2t}}{-4te^{-2t}}\,\mathrm dt=\frac74\int\mathrm dt = \frac74t$

$u_2=\displaystyle\int\frac{7t(2t-1)}{-4te^{-2t}}\,\mathrm dt=-\frac74\int(2t-1)e^{2t}\,\mathrm dt=-\frac74(t-1)e^{2t}$

The general solution to the ODE is

$y = C_1(2t-1) + C_2e^{-2t} + \dfrac74t(2t-1) - \dfrac74(t-1)e^{2t}e^{-2t}$

which simplifies somewhat to

$\boxed{y = C_1(2t-1) + C_2e^{-2t} + \dfrac74(2t^2-2t+1)}$

4 0

3 years ago

please answer ALL questions shown for 30 points. if you need me to type the questions answer and i will comment to type them.

creativ13 [48]

Answer: Type the questions please and take a clearer photo

Step-by-step explanation:

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3 years ago

What fraction is shown on the number line? 5/6 5/5 1/6 1/5 Pls help

icang [17]

5/6 as there is 6 jumps and the dot is placed on the fifth therefore being 5/6

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3 years ago

Determine the value of k so that the following system has an infinite number of solutions

Natasha2012 [34]

Answer:

uyf-fozr-kfw

Step-by-step explanation:

join interested girls in g.meet

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3 years ago

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