3 years ago

What property of equality is X-12=7

Mathematics

1 answer:

Andreyy893 years ago

8 0

The property of equality equal Nineteen

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nalin [4]

Answer:

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Step-by-step explanation:

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3 years ago

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First-order linear differential equations

kkurt [141]

Answer:

$(1)\ logy\ =\ -sint\ +\ c$

$(2)\ log(y+\dfrac{1}{2})\ =\ t^2\ +\ c$

Step-by-step explanation:

1. Given differential equation is

$\dfrac{dy}{dt}+ycost = 0$

$=>\ \dfrac{dy}{dt}\ =\ -ycost$

$=>\ \dfrac{dy}{y}\ =\ -cost dt$

On integrating both sides, we will have

$\int{\dfrac{dy}{y}}\ =\ \int{-cost\ dt}$

$=>\ logy\ =\ -sint\ +\ c$

Hence, the solution of given differential equation can be given by

$logy\ =\ -sint\ +\ c.$

2. Given differential equation,

$\dfrac{dy}{dt}\ -\ 2ty\ =\ t$

$=>\ \dfrac{dy}{dt}\ =\ t\ +\ 2ty$

$=>\ \dfrac{dy}{dt}\ =\ 2t(y+\dfrac{1}{2})$

$=>\ \dfrac{dy}{(y+\dfrac{1}{2})}\ =\ 2t dt$

On integrating both sides, we will have

$\int{\dfrac{dy}{(y+\dfrac{1}{2})}}\ =\ \int{2t dt}$

$=>\ log(y+\dfrac{1}{2})\ =\ 2.\dfrac{t^2}{2}\ + c$

$=>\ log(y+\dfrac{1}{2})\ =\ t^2\ +\ c$

Hence, the solution of given differential equation is

$log(y+\dfrac{1}{2})\ =\ t^2\ +\ c$

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3 years ago

Consider the explicit formula A(n) = 3/2 + 1/2(n-1)<br> 1a : Write the formula in function notation.

aleksandr82 [10.1K]

Answer:

i don't know this one!

Step-by-step explanation:

sorry!

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3 years ago

How much water is needed to completely fill a mini-aquarium measuring 20 cm x 35 cm x 50 cm?

labwork [276]

volume = l x w x h

volume = 20 x 35 x 50 = 35,000 cubic cm

1 cubic cm = 0.001 liter

35000 x 0.001 = 35 liters of water is needed

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3 years ago

Find the qoutient 13 divided by 1649 plz for me

kumpel [21]

13/1649= 0.0078835658

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3 years ago