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vovikov84 [41]
3 years ago
14

Please help me with the question

Mathematics
1 answer:
nikklg [1K]3 years ago
7 0

Answer:

4 and 5

Step-by-step explanation:

See attachment

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Calculate two iterations of Newton's Method to approximate a zero of the function using the given initial guess. (Round your ans
VikaD [51]

Answer:

The two iterations of f(x) = 1.5598

Step-by-step explanation:

If we apply  Newton's iterations method, we get a new guess of a zero of a function, f(x), xₙ₊₁, using a previous guess of, xₙ.

xₙ₊₁ = xₙ - f(xₙ) / f'(xₙ)

Given;

f(xₙ) = cos x, then  f'(xₙ) = - sin x

cos x / - sin x = -cot x

substitute in "-cot x" into the equation

xₙ₊₁ = xₙ - (- cot x)

xₙ₊₁ = xₙ + cot x

x₁ = 0.7

first iteration

x₂ = 0.7 + cot (0.7)

x₂ =  0.7 + 1.18724

x₂ = 1.88724

 

second iteration

x₃ = 1.88724 + cot (1.88724)

x₃ = 1.88724 - 0.32744

x₃ = 1.5598

To four decimal places = 1.5598

4 0
3 years ago
Here's a graph of a linear function. Write the
bazaltina [42]

Answer:

Step-by-step explanation:

The formula is y = mx + b

m being the slope, rise over run. And b being the y-intercept. Right off the bat we can visually see the y-intercept is -4.

To find slope, we need to take two sets of coords and apply the slope fomula. The slope fomula is change in y divided by the change in x. The function itself is straight, so that means the slope will be the exact same no matter which points you choose.

(4, -1) and (8, 2) are coords on the line. Do 2 - (-1) to get 3. then do 8 - 4 to get 4. Finally, we just gotta do 3/4 which is simply \frac{3}{4}.

We have the slope of 3/4 and we have the y-intercept of -4. Just plug it in the standard formula of y = mx + b to get:

y=\frac{3}{4} x-4

5 0
3 years ago
The answer because it is hard
notka56 [123]
Follow me answer= -77
6 0
3 years ago
Read 2 more answers
Sam and Bethan share £54 in the ratio 5:4. how much will each person get
Sunny_sXe [5.5K]
Given :- 
sam and Bethan shareare in the ratio 5:4 respectively. 
 Total no of money is = 54ÂŁ 
 Solution :-
 Let Sams share is be x ie = 5 
 Let Bethans share be y ie = 4
 Total no of share is = 9
 Therefore the persons share is (particular persons share / total no of share) *
total value of money 
 Ans : -
 Therefore sams share x is = (5/9)* 54 =30ÂŁ
 Therefore Bethans share y is = (4/9) * 54 = 24ÂŁ
5 0
3 years ago
What is the percent change of 12 niches to 36 omches
krek1111 [17]
The answer is 200%

Why? --- A change from 12 to 36 represents a positive change (increase) of 200%

Use the formula found below on this webpage to find the percent change by replacing the given values:

Percent change = [(12 - 36) / 12] x 100 = 200 % (increase)

Where: 12 is the old value and 36 is the new value. In this case we have a positive change (increase) of 200 percent because the new value is greater than the old value.


Hope this helps. :)

~Anonymous
7 0
3 years ago
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