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Margaret [11]
3 years ago
7

Use the "mixed partials" check to see if the following differential equation is exact.

Mathematics
1 answer:
Nadya [2.5K]3 years ago
3 0

Answer:

The equation is exact

F(x,y) = 3x4/4  - 3xy -y2

Step-by-step explanation:

The step by step explanation and to ascertain the exactness of the differential equation is as shown in the attached file.

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Give a rule of the piecewise-defined function.
nataly862011 [7]

The equation of the piecewise function is f(x) = \left[\begin{array}{ccc}3&x \le -1\\-1&x > 2\end{array}\right

<h3>The piecewise function</h3>

On the graph, we have:

  • y = 3 for all x values not more than -1
  • y = -1 for all values greater than 2

Hence, the piecewise function is:

f(x) = \left[\begin{array}{ccc}3&x \le -1\\-1&x > 2\end{array}\right

<h3>The domain of the function</h3>

This is the set of input values

In (a), we have:

x ≤ -1 and x > 2

Hence, the domain is (∞, 3] u (2, ∞)

<h3>The range of the function</h3>

This is the set of output values

In (a), we have:

f(x) = 3 and f(x) -1

Hence, the range is [3] u (-1)

Read more about piecewise function at:

brainly.com/question/18859540

#SPJ1

5 0
2 years ago
PLEASE HELP asap it’s for a quiz if you know at least one answer please tell me
VARVARA [1.3K]
  1. 15
  2. about 94.25
  3. about 706.86

Lmk if you want to know how I got the answers

3 0
3 years ago
Determine if -1, 1, 4, 8 is a geometric sequence
Vedmedyk [2.9K]

ANSWER

No, because there is no common ratio

EXPLANATION

The given sequence is

-1, 1, 4, 8

If this sequence is geometric, then there should be a common ratio among the consecutive terms.

\frac{1}{ - 1}  \ne \frac{4}{1}  \ne \frac{8}{4}

Hence the sequence

-1, 1, 4, 8

is not a geometric sequence.

3 0
3 years ago
Read 2 more answers
Look at the pictures pleaseeeeee
Alex

Answer:

Step-by-step explanation:

There is missing information in the task: HD║FG !!!!!

∠HDE ≅ ∠FGE and ∠EHD ≅ ∠EFG

<u><em>ΔEHG ~ ΔEFG</em></u> (AAA theorem of similarity)

m∠F = 22°

m∠G = 89°

3 0
3 years ago
Help me please !!<br> I need this ASAP please helpppp
Kobotan [32]

Answer:

C

Step-by-step explanation:

y=(2x-3)/5

5y=2x-3

(5y+3)/2=x

(5x+3)/2=y

f^{-1}(x)=(5x+3)/2

8 0
3 years ago
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