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AysviL [449]
3 years ago
8

Find quadratic polynomial which best fits the function f(x)=e^x and x=0, in the sense that g(0)= f(0), and g'(0) = f'(0), and g"

(0) = f"(0).
g(x)=?
Mathematics
1 answer:
Dmitriy789 [7]3 years ago
3 0
Let g(x)=ax^2+bx+c. Then

\begin{cases}g(0)=c\\g'(0)=b\\g''(0)=2a\end{cases}

Meanwhile, since f(x)=e^x, you have f(0)=f'(0)=f''(0)=e^0=1.

It follows that a=\dfrac12, b=1, and c=1, so that the quadratic fit for f(x)=e^x that satisfies the given points is

g(x)=\dfrac12x^2+x+1

Note that this is just the second-order Taylor polynomial for e^x about x=0.
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The temperature in Antarctica during the winter can average -42.3 degrees Celsius. During the summer it can average around 11.52
Sindrei [870]

Answer:

-30.78!

Step-by-step explanation:

3 0
2 years ago
P=2^(43112609)-1 Suppose you have traveled to a faraway place where the base of the number system is 37 . (The inhabitants of th
AfilCa [17]

Answer:

  8,275,842 digits

Step-by-step explanation:

One more than the floor of the logarithm to the base 37 gives the number of digits. The change of base formula can be used.

  \log_{37}{(2^{43112609}-1)}\approx\dfrac{43112609\log{2}}{\log{37}}\approx 8275841.2

Expressed in the base-37 number system, P has 8275842 digits.

6 0
3 years ago
There were 28,000 wolves in North Carolina in the 1950, but the population has declined by 8% each year.
jonny [76]

Answer:

8016

Step-by-step explanation:

28,000 x 0.92^15 = 8016.327314

5 0
2 years ago
What is the answer for this question?
grandymaker [24]

Answer:

A

Step-by-step explanation:

\frac{11\pi }{6} is in the fourth quadrant where tan < 0

The related acute angle = 2π - \frac{11\pi }{6} = \frac{\pi }{6}

Hence

tan( \frac{11\pi }{6} )

= - tan(\frac{\pi }{6} )

= - \frac{1}{\sqrt{3} }

= - \frac{1}{\sqrt{3} } × \frac{\sqrt{3} }{\sqrt{3} }

= - \frac{\sqrt{3} }{3} → A

5 0
2 years ago
A cylindrical can is to have volume 1500 cubic centimeters. determine the radius and the height which will minimize the amount o
Degger [83]
Assuming R and H:
So volume is pir^2 * H = 1500 and H = 1500/(pir^2)  while surface area is A= 2pir*H + 2pir^2 
A = 2pir(r+h)= 2piR^2 + 2pir*1500/(pir^2)= 2piR^2 + 3000/r
For A to take minimum, get the derivative 4pir - 3000/R^2 and let it be 0 
4pir^3 - 3000 = 0 
r = cbrt(3000/(4pi)) ≈ 6.20
h = 1500/(pi(6.20)^2) ≈ 12.42
8 0
3 years ago
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