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DerKrebs [107]
3 years ago
7

Does anyone know this question

Mathematics
2 answers:
ivanzaharov [21]3 years ago
5 0

the answer is B because it is 90° to the left (i guessed, srry for takin ya points dawg)

NARA [144]3 years ago
3 0

Answer:

The option A is the correct answer..

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Edyth runs on the treadmill for 25 minutes. She travels 3,200 meters during her workout. If Edyth travels at a constant speed, w
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Edyth ran 128 metres every minute. =)
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3 years ago
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Mario is constructing a square dart board. It will consist of a smaller square centered in a larger square. The smaller square m
Ivan

Answer:

6 inches.

Step-by-step explanation:

Let a represent side length of larger square.

We know that area of square is square of its side length, so area of the larger square will be a^2.

The area of smaller square would be 4^2.

We will use proportions to solve our given problem.

\frac{\text{Area of smaller square}}{\text{Area of larger square}}=\frac{4}{9}

\frac{4^2}{a^2}=\frac{4}{9}

\frac{16}{a^2}=\frac{4}{9}

Cross multiply:

4*a^2=16*9

\frac{4*a^2}{4}=\frac{16*9}{4}

a^2=36

Take square root:

a=\pm\sqrt{36}

a=\pm 6

Since the length cannot be negative, therefore, the side length of larger square is 6 inches.

8 0
2 years ago
What number can be written as 40 plus 5 ?
Sergio [31]
40+5=45 is written in extended form so your answer is 45
5 0
3 years ago
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The probability of a football team winning a match is 0.3. The probability of the same football team losing a match is 0.55. Wha
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Answer:

0.15

Step-by-step explanation:

1 -  P winning - P losing = P drawing

1 - 0.3 - 0.55 = 0.15

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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 <em>0.002652</em> 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

<em>f(x)=cos(x) </em>

<em> </em>

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]

8 0
2 years ago
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