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Sergio [31]
2 years ago
12

Match the scatter plot with its description

Mathematics
1 answer:
Crank2 years ago
3 0
I would put in,
1.Moderate and positive
2.Moderate and negative
3.Weak and positive
4.Strong and negative
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A grocery store sells snacks by weight 6 ounce bag of mixed nuts cost $3.60 predict the cost of two ounce bag
VARVARA [1.3K]

Answer:

1.20

Step-by-step explanation:

you divide the orginal cost by 3

4 0
3 years ago
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A fluid moves through a tube of length 1 meter and radius r=0.002±0.00015
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It so big problem
but you can do it
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goblinko [34]
Here is your answer

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3 years ago
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Find a compact form for generating functions of the sequence 1, 8,27,... , k^3
pantera1 [17]

This sequence has generating function

F(x)=\displaystyle\sum_{k\ge0}k^3x^k

(if we include k=0 for a moment)

Recall that for |x|, we have

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

Take the derivative to get

\displaystyle\frac1{(1-x)^2}=\sum_{k\ge0}kx^{k-1}=\frac1x\sum_{k\ge0}kx^k

\implies\dfrac x{(1-x)^2}=\displaystyle\sum_{k\ge0}kx^k

Take the derivative again:

\displaystyle\frac{(1-x)^2+2x(1-x)}{(1-x)^4}=\sum_{k\ge0}k^2x^{k-1}=\frac1x\sum_{k\ge0}k^2x^k

\implies\displaystyle\frac{x+x^2}{(1-x)^3}=\sum_{k\ge0}k^2x^k

Take the derivative one more time:

\displaystyle\frac{(1+2x)(1-x)^3+3(x+x^2)(1-x)^2}{(1-x)^6}=\sum_{k\ge0}k^3x^{k-1}=\frac1x\sum_{k\ge0}k^3x^k

\implies\displaystyle\frac{x+4x^3+x^3}{(1-x)^4}=\sum_{k\ge0}k^3x^k

so we have

\boxed{F(x)=\dfrac{x+4x^3+x^3}{(1-x)^4}}

5 0
3 years ago
4/-7 + -6/5 <br><br>In simplest form​
nlexa [21]

See attachment for math work and answer.

6 0
3 years ago
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