3 years ago

Write the equation of the line in point-slope form.

Mathematics

1 answer:

HACTEHA [7]3 years ago

4 0

Y-4=2/-3(x-6) I believe that’s the answer hope this helped

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520 dollars for 4 train tickets and 3 bus tickets.

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3 years ago

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Serjik [45]

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DiKsa [7]

Answer:

20 is the answer

Step-by-step explanation:

I did the math.hope it helps :)

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Let y′′′−9y′′+20y′=0. find all values of r such that y=erx satisfies the differential equation. if there is more than one correc

DerKrebs [107]

we are given

differential equation as

$y'''-9y''+20y'=0$

we are given

$y=e^{rx}$

Firstly, we will find y' , y'' and y'''

those are first , second and third derivative

First derivative is

$y'=re^{rx}$

Second derivative is

$y''=r*re^{rx}$

$y''=r^2e^{rx}$

Third derivative is

$y'''=r^2*re^{rx}$

$y'''=r^3e^{rx}$

now, we can plug these values into differential equation

and we get

$r^3 e^{rx}-9r^2 e^{rx}+20re^{rx}=0$

now, we can factor out common terms

$e^{rx}(r^3 -9r^2 +20r)=0$

we can move that term on right side

$(r^3 -9r^2 +20r)=0$

now, we can factor out

$r(r^2 -9r +20)=0$

$r(r-5)(r-4)=0$

now, we can set them equal

$r=0$

$r-5=0$

$r=5$

$r-4=0$

$r=4$

so, we will get

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3 years ago

Paul purchased 3 video games for $17.25 each. Which expression is the best choice to help him determine the total amount of mone

mr_godi [17]

Answer:

The answer is C or (3) × (17.25) = 51.75; He spent $51.75.

Step-by-step explanation:

i say this because 17.25 time 3 equal 51.75

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3 years ago