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xeze [42]
4 years ago
7

Help???????????????????

Mathematics
2 answers:
Sergeeva-Olga [200]4 years ago
8 0

Answer: <em>4</em> i think :)

makkiz [27]4 years ago
8 0
Yes the answer is 4
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Estimate the minimum number of subintervals to approximate the value of Integral from negative 3 to 3 (2 x squared plus 9 )dx wi
vichka [17]

Answer:

The value of n for (a) n=425. (b) n=0.

Step-by-step explanation:

Given integration is,

\int_{-3}^{3}f(x)=\int_{-3}^{3}(2x^2+9)dx

(a) For Trapezoidal Rule : Composite error is,

E_T=-\frac{(b-a)^3}{12n^2}f''(x_m)

Where, f''(x_m)=greatest value of |f''(x)|= |4|=4, a=-3, b=3. Therefore to find the minimum number of subinterval,

|E_T|\leq | \frac{(b-a)^3}{12n^2}f''(x)||

\leq \frac{4(-3-3)^3}{12n^2}

=\frac{72}{n^2}

According to the question, we must choose n such that,

\frac{72}{n^2}

\implies n>424.2640686

So we can take n=425.

(b) For Simpson 1/3 rule : Composite error is,

E_S=-\frac{(b-a)^5}{180n^4}f^{(iv)}(x_m)

where, f^{(x_m)}=\textit{greatest value of} |f^{(iv)}(x)|

In this problem f^{(iv)}(x)=0, so that,

|E_S|\leq 0

that is there exist no error. So n=0.

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3 years ago
A submarine was located 800 feet below sea level. There is a drone
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Answer:

1,050

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
What is 8,663,943,526 rounded to the nearest million? A. 8,663,000,000 B. 8,663,944,000 C. 8,664,000,000 D. 9,000,000,000
maksim [4K]
The answer is 
<span>C. 8,664,000,000</span>
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3 years ago
What is the rest of the answer to 767,074 rounded to the nearest hundred thousand
aev [14]
800000 hope this helps
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4 years ago
An acute angle θ is in a right triangle with sin θ = one half. What is the value of cot θ?
MrMuchimi

Answer:

  √3

Step-by-step explanation:

  cot²(θ) = csc²(θ) -1 . . . . . a relevant identity

  = 1/sin²(θ) -1

  = (1/(1/2))² -1 = 2² -1 = 3

Then ...

  cot(θ) = √3 . . . . . . . . take the square root

7 0
3 years ago
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