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Ivan
3 years ago
8

A rectangular field 50m wide and ym long require 260m of fencing. Find y

Mathematics
1 answer:
marshall27 [118]3 years ago
7 0

Answer:

\fbox{y=80}

Step-by-step explanation:

Let me know if you want the full explanation. Have a great weekend! ❤

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Suppose you solved a second-order equation by rewriting it as a system and found two scalar solutions: y = e^5x and z = e^2x. Th
xenn [34]

Answer:

The solutions are linearly independent because the Wronskian is not equal to 0 for all x.

The value of the Wronskian is \bold{W=-3e^{7x}}

Step-by-step explanation:

We can calculate the Wronskian using the fundamental solutions that we are provided and their corresponding the derivatives, since the Wroskian is defined as the following determinant.

W = \left|\begin{array}{cc}y&z\\y'&z'\end{array}\right|

Thus replacing the functions of the exercise we get:

W = \left|\begin{array}{cc}e^{5x}&e^{2x}\\5e^{5x}&2e^{2x}\end{array}\right|

Working with the determinant we get

W = 2e^{7x}-5e^{7x}\\W=-3e^{7x}

Thus we have found that the Wronskian is not 0, so the solutions are linearly independent.

3 0
3 years ago
In the following question choose the odd one. a. J81 b. P256 c. G49 d.L144
saul85 [17]

Answer:

a

Step-by-step explanation:

Hello

J is the 10th letter of the alphabet and 10^2=10081

P is the 16th letter and 16^2=256\\

G is the 7th letter and 7^2=49

L is the 12th letter and 12^2=144

hope this helps

7 0
2 years ago
Which statements are true about polygons? Select three options.
Assoli18 [71]

Answer:

A polygon is any 2-dimensional shape formed with straight lines.

Step-by-step explanation:

5 0
3 years ago
If 10 man can work 6hours.How many more men are needed towork in 4 hours​
Lerok [7]

Answer:

5 more men

Step-by-step explanation:

10 men do a job in 6 hours.

To do the job in 2 hours, 1/3 of the time, you need 3 times as many men.

30 men do a job in 2 hours.

To do the job in twice the time, 4 hours, you need half the men.

15 men do a job in 4 hours.

15 men - 10 men = 5 men

You need 5 more men.

4 0
2 years ago
An operator in the plant has a monthly salary of $2575. Thirty-three percent (33%) of her salary is deducted for income tax.
katovenus [111]
2575X.33=849.75

2575-849.75=1,725.25
6 0
3 years ago
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