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frozen [14]
3 years ago
6

What is the answer to this

Mathematics
2 answers:
Kay [80]3 years ago
7 0

Answer:

\displaystyle \frac{1}{36}

Step-by-step explanation:

According to the Product-to-Power Exponential Rule, whenever you multiply similar bases, you keep the base and add the exponents:

\displaystyle [-6]^{-2} = [-6]^{-10} \times [-6]^8 → \frac{1}{36} = [-6]^{-2}

I am joyous to assist you anytime.

Elis [28]3 years ago
5 0

Answer:

(-6)^-10 · (-6)^8 = (-6)^(-10+8)= (-6)^-2

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A strong positive correlation.

Step-by-step explanation:

The question requires you to calculate the correlation coefficient and then make a conclusion about its value.

Form a table as shown where x is cost of items and y is shipping cost

x               y           xy                   x²         y²

25           5.99       149.8          625         35.9

45            8.99       404.6       2025        80.8

50            8.99      449.5         2500       80.8

70            10.99      769.3         4900       120.8

190           34.96     1773.2        10050      318.3 ------sum

The formula for correlation coefficient follows;

r=n(∑xy)-(∑x)(∑y) ÷ √{[n∑x²-(x)²] [n∑y²-(y)²]}

where n=4

r=4(1773.2)-(190)(34.96) ÷ √{[4(10050)-190²] [4(318.3)-34.96²]}

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r=450÷457.3

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The value of r indicates a stronger positive correlation

Learn More

Correlation coefficient :brainly.com/question/12528676

Keywords :shipping costs,cost of items, strength of the model

#LearnwithBrainly

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