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DedPeter [7]
3 years ago
6

Gia is painting her wall. 1 liter of paint can cover 10 square meters. She has a rectangular wall that

Mathematics
1 answer:
garik1379 [7]3 years ago
7 0
5*4 equals 20 so her wall is 20 square meters
Given that one litre can cover 10 square meters, she needs 2 litres of paint to cover the wall
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Write the given second order equation as its equivalent system of first order equations
Lilit [14]

The second-order equation as its equivalent system of first-order equations is

\left[\begin{array}{ccc}u(1)\\\\v(1)\end{array}\right] = \left[\begin{array}{ccc}7.5\\\\9\end{array}\right]

An equivalent system that has the identical answer is known as an equivalent structure. Given a gadget of two equations, we can produce an equal system by way of replacing one equation by means of the sum of the 2 equations, or by way of changing an equation by means of a couple of of itself.

Systems of linear equations are equivalent if and handiest in the event that they have an equal set of solutions. In other phrases, two systems are equal if and only if each answer of one in all of them is likewise a solution of the opposite.

In the structures sciences, a machine equivalent system is the conduct of a parameter or thing of a machine in a way just like a parameter or component of a distinctive system. Similarity means that mathematically the parameters and additives will be indistinguishable from each different.

Taking v = u, we have:

u" + 4u' + 6u = 4sin(3t)

--> v' + 4v + 6u = 4sin(3t)

So the system of equations is:

u' = 0u + 1v

v' = -6u - 4v + 4sin(3t)

So we can write it as:

u(1) = 7.5

v(1) = u'(1) = 9

So the initial condition matrix is:

\left[\begin{array}{ccc}u(1)\\\\v(1)\end{array}\right] = \left[\begin{array}{ccc}7.5\\\\9\end{array}\right]

Learn  more about the equivalent system here brainly.com/question/14878855

#SPJ4

3 0
2 years ago
Solve for e. 5e=45 What is the value of e?
Mice21 [21]

Step-by-step explanation:

Given

5e = 45

e = 45 / 5

e = 9

Hope it will help :)

5 0
3 years ago
Help us this correct
Olegator [25]

Answer: all of them are correct! great job!!!1

Step-by-step explanation:

.4 is 40 percent because you move the decimal two spaces to the right so it would be 40 percent, same as the others!

5 0
3 years ago
Read 2 more answers
please and thank you I just need someone to correct my work from my answer to the answer my teacher wrote I'M CONFUSED AND NEED
Ludmilka [50]

Answer:

See below.

Step-by-step explanation:

I'll work it out myself,  then we should be able to see the mistake:-

6 ∛ (64x^5y^9)

= 6 * 4 * x^(5/3) * y^3

= 24 x^(3/3) * x^(2/3) y^3

= 24 x y^3 ∛(x^2)

You've got confused withe the cube root  (∛) on the first line. You've interpreted it   as ' 3  times the square root' so you were on the wrong road from the beginning.

Note that y^9 has cube root y^(9/ 3) = y^3  and x^5 has cube root of x^(5/3).   The square root of x^9 is x^(9/2).

5 0
3 years ago
32x 10^3 -1.7x10^-4​
Liula [17]

Answer:

31999.99983

Step-by-step explanation:

calculator :)

4 0
4 years ago
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