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astraxan [27]
3 years ago
5

Convert 3.2 kilometers to meters

Mathematics
2 answers:
Vaselesa [24]3 years ago
7 0

Answer:

3200

Step-by-step explanation:

elena55 [62]3 years ago
3 0

Answer:

3200

Step-by-step explanation:

one kilometer = 1000

3.2 * 1000

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I'm pretty sure it's commutative.
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Micheal is 3 times as old as Brandon. 18 years ago, Micheal was 9 times as old as Brandon.
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Step-by-step explanation:

18÷3=6

6×9=54

HOPE THIS HELPS!!

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The mass of the sun is 1.989x10^30 kilograms. The mass of the earth is 5.98x10^24 kilograms. About how many times bigger is the
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3 years ago
Y''+Y'+Y=1<br> solve ordinary differential equation
taurus [48]

Answer:

y(t) = c₁ e^(-1/2 t) cos(√3/2 t) + c₂ e^(-1/2 t) sin(√3/2 t) + 1

Step-by-step explanation:

y" + y' + y = 1

This is a second order nonhomogenous differential equation with constant coefficients.

First, find the roots of the complementary solution.

y" + y' + y = 0

r² + r + 1 = 0

r = [ -1 ± √(1² − 4(1)(1)) ] / 2(1)

r = [ -1 ± √(1 − 4) ] / 2

r = -1/2 ± i√3/2

These roots are complex, so the complementary solution is:

y = c₁ e^(-1/2 t) cos(√3/2 t) + c₂ e^(-1/2 t) sin(√3/2 t)

Next, assume the particular solution has the form of the right hand side of the differential equation.  In this case, a constant.

y = c

Plug this into the differential equation and use undetermined coefficients to solve:

y" + y' + y = 1

0 + 0 + c = 1

c = 1

So the total solution is:

y(t) = c₁ e^(-1/2 t) cos(√3/2 t) + c₂ e^(-1/2 t) sin(√3/2 t) + 1

To solve for c₁ and c₂, you need to be given initial conditions.

5 0
3 years ago
What is the difference of the two polynomials? (9x2 + 8x) – (2x2 + 3x) 7x2 + 5x 7x2 + 11x 11x2 + 5x 11x2 + 11x
Anuta_ua [19.1K]

we have

(9x^{2}+8x)-(2x^{2}+3x)

Step 1

Eliminate the parenthesis

(9x^{2}+8x)-(2x^{2}+3x)=9x^{2}+8x-2x^{2}-3x

Step 2

Group terms that contain the same variable

9x^{2}-2x^{2}+8x-3x

Step 3

Combine like terms

7x^{2}+5x

therefore

the answer is

7x^{2}+5x

5 0
3 years ago
Read 2 more answers
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