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Luda [366]
3 years ago
12

A2. Find y' and y" for y^2 = x^2+ sinxy

Mathematics
1 answer:
kumpel [21]3 years ago
4 0

Answer:

y'   = (2x + y cosxy)/(2y + x cosxy)

Step-by-step explanation:

Using implicit differentiation:

y^2 = x^2 + sin xy

2y y' = 2x + cos xy  * (xy' + y)

2y y' = 2x + xy' cos xy + y cos xy

2y y' - xy' cosxy = 2x + ycos xy

y'   = (2x + y cosxy)/(2y - x cosxy)

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Answer this for 35 points, brainliest, a heart and more
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Answer:

7. multiply 2

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Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.
alexandr1967 [171]

The total cost of the bracelet will be $96.

The number of charms will be 2.

Step-by-step explanation:

Given,

Cost per charm at Dayton Fine Jewelry = $17

Cost of bracelet = $62

Let,

x be the number of charms

y be the total cost

y = 17x+62   Eqn 1

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Cost of bracelet = $60

y = 18x+60   Eqn 2

For same cost;

Eqn 1 = Eqn 2

17x+62=18x+60\\62-60=18x-17x\\2=x\\x=2

Putting x=2 in Eqn 1

y=17(2)+62\\y=34+62\\y=96

Putting x=2 in Eqn 2

y=18(2) +60\\y=36+60\\y=96

The total cost of the bracelet will be $96.

The number of charms will be 2.

Keywords: equation, addition

Learn more about addition at:

  • brainly.com/question/1021953
  • brainly.com/question/10480770

#LearnwithBrainly

4 0
4 years ago
1.75x+1.25y=2<br> 7x+5y=9<br> how many solutions does this system of equations have?
Zepler [3.9K]

Answer:

Step-by-step explanation:

1.75x+1.25y=2           Multiply this equation by 4

7x + 5y = 8

7x+5y=9

As you can see, the xs and ys have the same coefficient. These lines are parallel. There are NO solutions. Just to show you that, here is a graph.

6 0
3 years ago
H(j + i) - k5 + h<br> when h = 3, i = 4, j = 2, and k = 1<br> pls put how you did it
VikaD [51]

Answer:

16

Step-by-step explanation:

First you want to plug in all the numbers where the letters are

h ( j + i )- k(5) + h

3 ( 2 + 4 )- 1(5) + 3

After this step you will have to distribute the 3 outside the parenthesis. Which you do by multiplying everything in side the parenthesis by the outside number which is three.

6 + 12 - 1(5) + 3

Then you just follow PEMDAS to solve for the rest

6 + 12 - 5 + 3

18 - 5 + 3

13 + 3

16

6 0
3 years ago
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