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liubo4ka [24]
3 years ago
6

Help me plz with problem I need a lot of help with it

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0
Take 70 multiply by .47 and the answer is 32.9
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Como simplificar 120/45
Leto [7]

Answer:

simplified in the exact form: 8/3

simplified in decimal form: 2.6

simplified in mixed number form:  2 2/3

5 0
3 years ago
find the Taylor Series for tan−1(x) based at 0. Give your answer using summation notation and give the largest open interval on
enyata [817]

Let f(x)=\tan^{-1}x. Then f'(x)=\frac1{1+x^2}. Note that f(0)=0.

Recall that for |x|, we have

\displaystyle\frac1{1-x}=\sum_{n\ge0}x^n

This means that for |-x^2|=|x|^2, or -1, we have

\displaystyle f'(x)=\frac1{1+x^2}=\frac1{1-(-x^2)}=\sum_{n\ge0}(-x^2)^n=\sum_{n\ge0}(-1)^nx^{2n}

Integrate the series to get

f(x)=f(0)+\displaystyle\sum_{n\ge0}\frac{(-1)^n}{2n+1}x^{2n+1}

\implies\tan^{-1}x=\displaystyle\sum_{n\ge0}\frac{(-1)^n}{2n+1}x^{2n+1}

6 0
3 years ago
At a camp, kids can choose swimming, art, or music. 40 kids choose swimming, 16 choose art, and 24 choose music. What is the rat
Anna [14]

the ratio would be as follows

40:16

or

5:2

Worded there are five kids who choose to swim to every 2 kids that choose art.

this could also be written as a fraction 40/16 = 5/2

7 0
3 years ago
Read 2 more answers
Select the correct answer from each drop-down menu. A system of equations and its solution are given system A x-y=7 -3x+9y=-39 s
galina1969 [7]

Answer:

Step-by-step explanation:

x-y=7

-3x+9y=-39

Divide the second equation by 3

-x +3y = -13

Add this to the first equation

x-y=7

-x +3y = -13

----------------------

0x +2y = -6

Divide by 2

2y/2 = -6/2

y = -3

Now find x

x-y = 7

x -(-3) = 7

x+3 = 7

Subtract 3 from each side

x = 4

(4,-3)

Or by substitution

x-y=7  

solve for x

x = 7+y

-3x+9y=-39

Substitute y+7 in for x

-3(7+y) +9y = -39

Distribute

-21 -3y +9y = -39

Combine like terms

-21 +6y = -39

Add 21 to each side

6y = -18

4 0
3 years ago
Help me out please i don’t understand
Murljashka [212]

Answer:

im not 100% sure if this the answer

C=5/9F-160/9

Step-by-step explanation:

7 0
3 years ago
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