3 years ago

-4x-2y=-12 solve the system of equations

Mathematics

1 answer:

Blababa [14]3 years ago

3 0

Um there needs to be another equation

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Which angles are complementary<br> to <2. Select all that apply.

KiRa [710]

Answer:

∠1 only

Step-by-step explanation:

Complementary angles:

sum to 90°
form a right angle

The only angle (that's an answer choice) that helps form a right angle with angle 2 is angle 1, thus making it the correct answer.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

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3 years ago

Solve the Method of variation of Parameters. y" - 3y' + 2y = 4e^3t

kirill [66]

Answer:

CF+PI= $c_1e^{2x}+c_2e^{x}$ + $2e^{3t}$

Step-by-step explanation:

we have given y"-3y'=2y= $4e^{3t}$

this differential equation solution have two part that CF and PI

CALCULATION OF CF :

$m^2-3m+2=0$

$m^2-2m-m+2=0$

$(m-1)(m-2)=0$

m=1 and m=2

so CF= $c_1e^{2x}+c_2e^{x}$

CALCULATION OF PI :

PI = $\frac{4e^{3t}}{(m-1)(m-2)}$

at m= 3 in PI

$PI=\frac{4e^{3t}}{2}=2e^{3t}$

so the complete solution is

CF+PI= $c_1e^{2x}+c_2e^{x}$ + $2e^{3t}$

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3 years ago

What is the value of the underlined digit in 91,764,350?

VMariaS [17]

Digit wise values.

$\\ \sf\longmapsto 9=90000000$

$\\ \sf\longmapsto 1=1000000$

$\\ \sf\longmapsto 7=700000$

$\\ \sf\longmapsto 6=60000$

$\\ \sf\longmapsto 4=4000$

$\\ \sf\longmapsto 3=300$

$\\ \sf\longmapsto 5=50$

$\\ \sf\longmapsto 0=0$

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There is snow on the ground outside.

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ludmilkaskok [199]

Answer:

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Step-by-step explanation:

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