3 years ago

Please help! Thank you! :D Giving brainlest

Mathematics

1 answer:

Arlecino [84]3 years ago

5 0

Answer:

H ≤ -2.4

Step-by-step explanation:

dark line pointing left at -24

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Choose 3 side lengths that would create a right triangle in order from shortest to longest.

inysia [295]

Answer:

Step-by-step explanation:

shortest-7

middle-24

longest-25

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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

dev knows he only has 8gallons of gasoline in the tank. he wants to go on a 300- mile trip. will he have to buy more gasoline? a

max2010maxim [7]

Yes you will need more gassoline

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rodikova [14]

Well, we see that it is a straight line
so the derivitive would be perpendicular
5/4 times what=-1
-4/5

the slope is -4/5

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3 years ago

Find the perimeter of the figure.

astraxan [27]

Answer:

26 meters

Step-by-step explanation: Ez. First add all the data you already have. You should end up with 19. Then, you want to find the length of the missing side. Well, we know it's 7 meters since its opposite is 7, and these lengths are in the same square. So 19+7 is 26 meters.

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3 years ago

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