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3 years ago

13

Which operations is the following set closed under {...,-3,-2,1,3,...}

1 answer:

ch4aika [34]3 years ago

6 0

Addition should be the answer to your question

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If the mean for a sample of 8 people was 10 and the mean for a second sample of 4 people was 20, what would the weighted mean be

Snowcat [4.5K]

Weighted mean = (8*10+4*20)/(8+4) = 160/12= 40/3 ≈ 13.3

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3 years ago

Which set of values are equivalent. ,

Gnoma [55]

3/10, 30%, 0.3

because 3/10 basically means 3 out of 10. that's 30%. 0.3 is just 3/10 in decimal form.

3 0

3 years ago

I need help ASAP plss!!

topjm [15]

Answer:

c. 8.359

Step-by-step explanation:

i hope this helps :)

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3 years ago

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What's a rational number between 7.7 and 7.9?

svet-max [94.6K]

A rational number is a number that can be expressed as the relationship between two integers. Fractions and decimals will either repeat or end. An example is 5. Maybe 7. 53573 is an example as well. So is 5/1, because 5 and 1 are both integers. so is 7.5, because 7 and 5 are both integers, and it ends (the numbers after the decimal doesn't keep going). Your answer is 7.8, because it ends.

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3 years ago

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The base of a square prism has an area of 16 in. The

Inessa05 [86]

Surface Area of square prism = 896 inches^2

Step-by-step explanation:

Base of a square prism has an area = 16 in

Height of prism = 6 in

Surface Area of square prism = ?

The formula used to calculate the Surface Area of square prism is:

$Surface\,\,Area=2a^2+4ah$

where a is base area and h is height.

Putting Values to find Surface area:

$Surface\,\,Area=2a^2+4ah\\Surface\,\,Area=2(16)^2+4(16)(6)\\Surface\,\,Area=2(256)+4(96)\\Surface\,\,Area=512+384\\Surface\,\,Area=896$

So, Surface Area of square prism = 896 inches^2

Keywords: Surface Area of square prism

Learn more about Surface Area of square prism at:

#learnwithBrainly

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3 years ago

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