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AysviL [449]
3 years ago
8

Find the first partial derivatives of the function. f(x, y) = ax + by/ cx + dy

Mathematics
1 answer:
Marina86 [1]3 years ago
5 0
<span>The partial derivative of the given function with respect to x is a - by/cx2 + dy/dx In this derivative the terms in the with x is only considered other or treated as constant The partial derivative of the given function with respect to y is b/cx+ d2y/dx. In this derivative the terms in the with x is only considered other or treated as constant</span>
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Find two numbers whose sum is 25 and the sum of whose reciprocals is 1/6
Katen [24]

Answer:

10 and 15

Step-by-step explanation:

Let 'x' and 'y' are the numbers we need to find.

x + y = 25 (two numbers whose sum is 25)

(1/x) + (1/y) = 1/6 (the sum of whose reciprocals is 1/6)

The solutions of the this system of equations are the numbers we need to find.

x = 25 - y

1/(25 - y) + 1/y = 1/6 multiply both sides by 6(25-y)y

6y + 6(25-y) = (25-y)y

6y + 150 - 6y = 25y - (y^2)

y^2 - 25y + 150 = 0 quadratic equation has 2 solutions

y1 = 15

y2 = 10

Thus we have :

First solution: for y = 15, x = 25 - 15 = 10

Second solution: for y = 10, x = 25 - 10 = 15

The first and the second solution are in fact the same one solution we are looking for: the two numbers are 10 and 15 (since the combination 10 and 15 is the same as 15 and 10).

5 0
3 years ago
Pls help me 10 points
Dennis_Churaev [7]

Answer:

k=3/5

Step-by-step explanation:

k=y/x

k=3/5

7 0
2 years ago
Read 2 more answers
Match each pair of equivalent fractions. 1 . 4/16 2 . 12/18 3 . 4/10 4 . 16/20
Illusion [34]
Basically divide each fraction to get the simplified version of each answer. You divide each fraction by the highest multiple.
4/16 can be divided by 4 to get 1/4
12/18 can be divided by 6 to get 2/3
4/10 can be divided by 2 to get 2/5
16/20 can be divided by 4 to get 4/5
3 0
3 years ago
Parker ran 800 meters, 6 kilometers,and 4,000 centimeters. How many meters did he run all together?
Vesna [10]
The correct answer is 6,840 meters. Hope this helps! ;)
6 0
3 years ago
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the table shows the relationship between the number of players on a team and the minutes each player gets to play. is the relati
xxTIMURxx [149]

Answer:

linear

Step-by-step explanation:

ist is congruent

5 0
3 years ago
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