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3 years ago

What are 3 synonyms for a x-value

Mathematics

2 answers:

vodka [1.7K]3 years ago

7 0

Answer:

cost, equivalent, market price, monetary worth, rate.

advantage, benefit, desirability, help, importance, merit, mileage (informal) profit, serviceableness, significance, use, usefulness, utility, worth.

code of behaviour, ethics, (moral) standards, principles.

Step-by-step explanation:

Nastasia [14]3 years ago

5 0

Answer:

Step-by-step explanation:

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Simplify expression -9b-4+4+9b

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B=0 because everything cancels out

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3 years ago

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Find T5(x) : Taylor polynomial of degree 5 of the function f(x)=cos(x) at a=0 . (You need to enter function.) T5(x)= Find all va

Burka [1]

Answer:

$\bf cos(x)\approx1-\displaystyle\frac{x^2}{2}+\displaystyle\frac{x^4}{4!}=\\\\=1-\displaystyle\frac{x^2}{2}+\displaystyle\frac{x^4}{24}$

The polynomial is an approximation with an error less than or equals to 0.002652 for x in the interval

[-1.113826815, 1.113826815]

Step-by-step explanation:

According to Taylor's theorem

$\bf f(x)=f(0)+f'(0)x+f''(0)\displaystyle\frac{x^2}{2}+f^{(3)}(0)\displaystyle\frac{x^3}{3!}+f^{(4)}(0)\displaystyle\frac{x^4}{4!}+f^{(5)}(0)\displaystyle\frac{x^5}{5!}+R_6(x)$

with

$\bf R_6(x)=f^{(6)}(c)\displaystyle\frac{x^6}{6!}$

for some c in the interval (-x, x)

In the particular case f

f(x)=cos(x)

we have

$\bf f'(x)=-sin(x)\\f''(x)=-cos(x)\\f^{(3)}(x)=sin(x)\\f^{(4)}(x)=cos(x)\\f^{(5)}(x)=-sin(x)\\f^{(6)}(x)=-cos(x)$

therefore

$\bf f'(x)=-sin(0)=0\\f''(0)=-cos(0)=-1\\f^{(3)}(0)=sin(0)=0\\f^{(4)}(0)=cos(0)=1\\f^{(5)}(0)=-sin(0)=0$

and the polynomial approximation of T5(x) of cos(x) would be

$\bf cos(x)\approx1-\displaystyle\frac{x^2}{2}+\displaystyle\frac{x^4}{4!}=\\\\=1-\displaystyle\frac{x^2}{2}+\displaystyle\frac{x^4}{24}$

In order to find all the values of x for which this approximation is within 0.002652 of the right answer, we notice that

$\bf R_6(x)=-cos(c)\displaystyle\frac{x^6}{6!}$

for some c in (-x,x). So

$\bf |R_6(x)|\leq|\displaystyle\frac{x^6}{6!}|=\displaystyle\frac{|x|^6}{6!}$

and we must find the values of x for which

$\bf \displaystyle\frac{|x|^6}{6!}\leq0.002652$

Working this inequality out, we find

$\bf \displaystyle\frac{|x|^6}{6!}\leq0.002652\Rightarrow |x|^6\leq1.90944\Rightarrow\\\\\Rightarrow |x|\leq\sqrt[6]{1.90944}\Rightarrow |x|\leq1.113826815$

Therefore the polynomial is an approximation with an error less than or equals to 0.002652 for x in the interval

[-1.113826815, 1.113826815]

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3 years ago

Helping little sis with homework! =) A student says that the solution of 375 = x – 28 is 347. Explain the student’s error and fi

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The student subtracted each side by 28, which is wrong because if u want to cancel -28, you need to add 28 to both sides. The correct answer is 403. I need brainliest answer pls

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4 years ago

Compare the ratios in Table 1 and Table 2. Table 1 3 5 6 10 9 15 12 20 Table 2 7 10 14 20 21 30 28 40 Which statements about the

Hatshy [7]

Answer:

Step-by-step explanation:

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3 years ago

A common scale for do-it-yourself airplane models is 1:48. The F-117A Stealth Fighter is 63 feet, 9 inches long. To the nearest

givi [52]

Answer:

15 feets, 11.25 inches

Step-by-step explanation:

Given that:

Scale = 1 : 48

Thus means that the model is 1/48 the actual size of the jet

Length of fighter jet = 63feets, 9 inches

Converting the entire length to inches

1 feet = 12 inches

63 feets = (12 * 63) = 756

Lenght of jet = (756 + 9) = 765 inches

1/48 * 765 = 15.9375 ; 15 feets, 11.25 inches

Hence, length of model = 15 feets, 11.25 inches

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3 years ago