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stellarik [79]
3 years ago
6

2/3 divided by 4???????????????????

Mathematics
2 answers:
stich3 [128]3 years ago
5 0
1/6 is the answer when you divide it by 4

stepan [7]3 years ago
3 0
2/3 / 4= 2/3* 1/4
answer: 1/6
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find the number of different outfits that can be made if you choose 1 each from 11 skirts, 9 blouses, 3 belts, and 7 pair of sho
zhenek [66]
Counting principle
Multiply 11 * 9 * 3 * 7 = 2079
6 0
3 years ago
The rate of transmission in a telegraph cable is observed to be proportional to x2ln(1/x) where x is the ratio of the radius of
sergij07 [2.7K]

Answer:

The value of x that gives the maximum transmission is 1/√e ≅0.607

Step-by-step explanation:

Lets call f the rate function f. Note that f(x) = k * x^2ln(1/x), where k is a positive constant (this is because f is proportional to the other expression). In order to compute the maximum of f in (0,1), we derivate f, using the product rule.

f'(x) = k*((x^2)'*ln(1/x) + x^2*(ln(1/x)')) = k*(2x\,ln(1/x)+x^2*(\frac{1}{1/x}*(-\frac{1}{x^2})))\\= k * (2x \, ln(1/x)-x)

We need to equalize f' to 0

  • k*(2x ln(1/x) - x) = 0 -------- We send k dividing to the other side
  • 2x ln(1/x) - x = 0 -------- Now we take the x and move it to the other side
  • 2x ln(1/x) = x -- Now, we send 2x dividing (note that x>0, so we can divide)
  • ln(1/x) = x/2x = 1/2 -------  we send the natural logarithm as exp
  • 1/x = e^(1/2)
  • x = 1/e^(1/2) = 1/√e ≅ 0.607

Thus, the value of x that gives the maximum transmission is 1/√e.

7 0
3 years ago
1489.45 Round this number to two decimal places​
Gekata [30.6K]
It is already rounded so you wont have to do anything.
8 0
3 years ago
Read 2 more answers
Write the equation of the line that passes through the points (1,3) and (3,4).
BartSMP [9]

Answer:

y=1/2x+5/2

Step-by-step explanation:

4-3=1

3-1=2

m=1/2x

So now you have y=1/2x

Insert into equation

y=1/2x+?

Now sub you slope in to last points, and you get 5/2

So now you final answer is:

y=1/2x+5/2

8 0
2 years ago
Read 2 more answers
Using the number line shown, place a point at 4 and the opposite of 4 . Place a point at −2 and at the opposite of −2 . Place a
Fed [463]

Answer:

1/4

Step-by-step explanation:

5 0
3 years ago
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