All categories

3 years ago

Given a system of linear equations: dy/dx = 4x-y dy/dx = x-2y Find the general solution.

Mathematics

1 answer:

mina [271]3 years ago

3 0

Answer:

x=-y/3

y=-3x

Step-by-step explanation:

dy/dx=4x-y means 4x-y=0

dy/dx=x-2y also means x-2y=0 then

4x-y=x-2y

3x=-y

y=-3x

x=-y/3

You might be interested in

Paul is doing the repair work for the roller coaster shown below. Select the most appropriate unit to measure the horizontal dis

Ymorist [56]

Answer:

Feet

Step-by-step explanation:

Inches and centimeters are really small, so it wouldn't be appropriate to measure it in those units. Miles are really long, so that to would not be appropriate.

5 0

3 years ago

Their sum is -11 and the difference is 41

jeka94

Answer:

x+41=-11 I guess

Step-by-step explanation:

8 0

2 years ago

Write at least 2 numerical expressions for each written phrase below. Then, solve.

zloy xaker [14]

Answer:

a. $\frac{3}{5}(7)\text{ or }\frac{3\times 7}{5}$

b. $\frac{1}{6}(4\times 8)\text{ or }\frac{4\times 8}{6}$

Step-by-step explanation:

In numerical expressions we write numbers with the mathematical symbols ( i.e. '+', '-' etc )

a. Given phrase,

Three fifths of seven,

$\frac{3}{5}(7)$

$=\frac{3\times 7}{5}$

$=\frac{21}{5}$

$=4\frac{1}{5}$

b. One sixth the product of four and eight,

$\frac{1}{6}(4\times 8)$

$=\frac{4\times 8}{6}$

$=\frac{32}{6}$

$=5\frac{1}{3}$

7 0

3 years ago

What is the value of xin the diagram? A. 9 B. 8 C. 7 D. 6

RoseWind [281]

Answer:

Step-by-step explanation:

The ratio of the similar triangles is

14 49

---- = ------

2 x

Using cross products

14x = 2*49

14x = 98

Divide by 14

14x/14 = 98/7

x =7

7 0

2 years ago

Three more than twice a number is nine

denis23 [38]

Answer:

2x + 3 = 9

Step-by-step explanation:

Three more than twice a number is nine

Twice a number would be 2x
where x is the number

Three more would be + 3

And is means equal sign or “=“

6 0

3 years ago

Read 2 more answers