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4 years ago

In this problem you will use variation of parameters to solve the nonhomogeneous equation y′′+6y′+9y=−2e−3t

Mathematics

1 answer:

lianna [129]4 years ago

7 0

Try this solution (see the attachment).

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in the figure below, what are the values of x and y? What are the measures of the four angles in the figure

snow_tiger [21]

Answer:

a. x=57.6, y=44.8

Step-by-step explanation:

Named the angles, check the picture for that

<ABD+<ACD=180 (Opposite angles of a quadrilateral is supplementary (180 degrees)

<CAB+<BDC=180 (Opposite angles of a quadrilateral is supplementary (180 degrees)

therefore:

a. 3y+x-12=180.............. equ 1

2x+y+20=180.............equ 2

From equ 1

x+3y=180+12

x+3y=192...............equ 3

From equ 2

2x+y=180-20

2x+y=160.............equ 4

Equate equ 3 and equ 4

x+3y=192...............equ 3

2x+y=160.............equ 4

Using elimation method

x+3y=192...............equ 3

2x+y=160.............equ 4

Multiple equ 3 by 1 and equ 4 by 3

x+3y=192...............equ 3 ×1

2x+y=160.............equ 4 ×3

x+3y=192

6x+3y=480

Subtract

-5x+0=-288

-5x=-288

x=57.6................... Equ 5

Replace 57.6 for x in equ 3

x+3y=192...............equ 3

57.6+3y=192

3y=192-57.6

3y=134.4

y=44.8

B. <CAB= 2x=2×57.6=115.2

<ABD= 3y=3×44.8= 134.4

<ACD=x-12=57.6-12=45.6

<BDC=y+20=44.8+20=64.8

8 0

3 years ago

X+17= -12 Please ASAP!

sdas [7]

Answer:

x=-29

Step-by-step explanation:

Minus 17 from both sides.

So x=-29

8 0

3 years ago

Read 2 more answers

Please Help Meh I dont Get this

LekaFEV [45]

The final answer is x = -19/6. The first step is to reduce the expression to
2/3 * 3(5-3x)= 29. This will make the equation much easier. The next step is to simplify by cancelling out the 3 in 2/3 with the 3 multiplying 5-3x so it leaves you with 2(5-3x)=29. Then you would remove the parenthesis by using the distributive property and simplifying 2(5-3x) to 10-6x= 29. Then subtract 10 from both sides, which leaves you with -6x = 19. Divide by -6 on both sides and you get x= -19/6. Hope this helps

4 0

3 years ago

Which fraction has the greatest value? 5/6 1/6 - 1/6 - 5/6

Serggg [28]

5/6 that is the answer

best of luck my friend

8 0

3 years ago

4X+8<28 ayudenme por favor

VMariaS [17]

Answer:

x < 5.

Step-by-step explanation:

Creo que esto es correcto. :')

7 0

2 years ago