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3 years ago

I'm just learning about this help please794.561 x 10 2

Mathematics

1 answer:

andre [41]3 years ago

4 0

Answer:

79456.1

Step-by-step explanation:

is it 794.561 × 10(2)?

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Solve for x<br> 1 − 6x ≤ − 17<br> please help i am crying rn

irina [24]

Answer:

$x \geqslant 3$

Step-by-step explanation:

subtract 1 from both sides

-6x<-17-1

simplify

-6x<-18

divide by 6 on both sides

x>3

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3 years ago

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3 years ago

Karla makes paper airplanes. Today, it takes her 32 min to make 16 paper airplanes.

Pavel [41]

Answer:

48/b

Step-by-step explanation:

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3 years ago

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

$r=0,4,5$ ...............Answer

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3 years ago

Use special right triangle ratios to find the length of the hypotenuse.

Nady [450]

Answer:

Step-by-step explanation:

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3 years ago

I'm just learning about this help please794.561 x 10 2​

I'm just learning about this help please794.561 x 10 2