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3 years ago

Please rewrite in standard form

Mathematics

1 answer:

Yakvenalex [24]3 years ago

7 0

Answer:

Write what?

Step-by-step explanation:

I dont understant?

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Jennifer made a cake and brownies .Her

babymother [125]

Answer:

cake 90

Step-by-step explanation:

8×5×2=90

length ×width ×height

8 0

3 years ago

Find a homogeneous linear differential equation with constant coefficients whose general solution is given by

frez [133]

Answer:

$y" + 2y' + 2y = 0$

Step-by-step explanation:

Given

$y=c_1e^{-x}cosx+c_2e^{-x}sinx$

Required

Determine a homogeneous linear differential equation

Rewrite the expression as:

$y=c_1e^{\alpha x}cos(\beta x)+c_2e^{\alpha x}sin(\beta x)$

Where

$\alpha = -1$ and $\beta = 1$

For a homogeneous linear differential equation, the repeated value m is given as:

$m = \alpha \± \beta i$

Substitute values for $\alpha$ and $\beta$

$m = -1 \± 1*i$

$m = -1 \± i$

Add 1 to both sides

$m +1= 1 -1 \± i$

$m +1= \± i$

Square both sides

$(m +1)^2= (\± i)^2$

$m^2 + m + m + 1 = i^2$

$m^2 + 2m + 1 = i^2$

In complex numbers:

$i^2 = -1$

So, the expression becomes:

$m^2 + 2m + 1 = -1$

Add 1 to both sides

$m^2 + 2m + 1 +1= -1+1$

$m^2 + 2m + 2= 0$

This corresponds to the homogeneous linear differential equation

$y" + 2y' + 2y = 0$

6 0

3 years ago

Simplify the expression: 3v2–2v2+9v2

Andru [333]

Answer:

10v^2

Step-by-step explanation:

(I'm assuming the 2's are all exponents)

3v^2 - 2v^2 + 9v^2 <- think of it as 3 - 2 + 9 = 10, then add the rest back on

10v^2

4 0

3 years ago

Read 2 more answers

Y=4x+7 x-intercept: y-intercept:

MAXImum [283]

X=-7/4,0
y=(0,7)
the answers

5 0

4 years ago

20. The figures are similar. Find x.

snow_tiger [21]

Answer:

Step-by-step explanation:

You can see that both triangles are the same except for one thing: one is smaller. Since 7 is half of 14 and both triangles are similar, x stands for 10. That is because 10 is half of 20! :D

7 0

3 years ago