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olga2289 [7]
2 years ago
11

Giải phương trình vi phân : (4x-y)dx+(x+y)dy=0

Mathematics
2 answers:
Artist 52 [7]2 years ago
6 0
The correct Answer is B
V125BC [204]2 years ago
4 0

Answer:

b

Step-by-step explanation:

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Please explain your answer. Thank you!
Liula [17]

Answer:

C

Step-by-step explanation:

Let length of rectangle be "l"

Let width of rectangle be "w"

We know,

LENGTH is 2 MORE THAN WIDTH, we can write:

l = w + 2

Also, note the perimeter is the sum of all 4 sides of a rectangle, thus:

length + width + length + width

Now,

The perimeter is given as 72, so we can write:

l + l + w + w = 72

2l + 2w = 72

We have 2 equations that we need to solve and find the length (l).

The first equation is:

l = w + 2

Rearranging, we have:

w = l - 2

We put this into 2nd equation and find the value of l:

2l + 2w = 72\\2l + 2(l-2) = 72\\2l+2l-4=72\\4l-4=72\\4l=76\\l=\frac{76}{4}\\l=19

The length is 19 meters, the correct answer is C

3 0
3 years ago
Please help
MArishka [77]
2^4x-2^3x-3

2^3=2x2x2
Which equals 8
3 0
3 years ago
2 4/5 x 3 1/8 proper fraction show work
erastovalidia [21]

Answer:

answer is 8 3/4

the formula is in the picture

hope this picture helps

4 0
3 years ago
Read 2 more answers
PLEASEEEEE SURELY SOMEBODY OUT THERE MUST KNOW HOW TO DO THIS FREAKIN HARDD COMPLICATED MATHHH PLSSS HELPPP MEEEEEEEEEEEEEEEEEEE
FromTheMoon [43]
Question 5 is (-3,4)
4 0
2 years ago
My rule is: y = x + 12 <br> If y = 17 <br> What is x?
Usimov [2.4K]

Answer:

x=5

Step-by-step explanation:

y=x+12

17=x+12

17=5+12

17=17 ✓

5 0
2 years ago
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