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3 years ago

Answer this. It's the area of a trapezoid

Mathematics

1 answer:

Lelechka [254]3 years ago

6 0

((b1+b2)÷2)(h)=A
so I think the answer is 3 1/16 or 3.0625

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15 inches and 8 feet in the simplest form

aivan3 [116]

9ft n 3 inches , because 12 inches is a feet ! if you know then you know

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2 years ago

A science teacher has 0.4 of seawater she gives each of her 22 tune in a container or a 5ml spoon she asked as soon as you put t

lidiya [134]

Answer:

the photo is the answer

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2 years ago

What is an example of when you would want consistent data and, therefore, a small standard deviation?

steposvetlana [31]

Answer:

12.1, 12.3,12.4,12.5,12.3,12.1,12.2

$\bar X= \frac{12.1+12.3+12.4+12.5+12.3+12.1+12.2}{7}=12.271$

And for the standard deviation we can use the following formula:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And after replace we got:

$s = 0.1496$

And as we can ee we got a small value for the deviation <1 on this case.

Step-by-step explanation:

For example if we have the following data:

12.1, 12.3,12.4,12.5,12.3,12.1,12.2

We see that the data are similar for all the observations so we would expect a small standard deviation

If we calculate the sample mean we can use the following formula:

$\bar X=\frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= \frac{12.1+12.3+12.4+12.5+12.3+12.1+12.2}{7}=12.271$

And for the standard deviation we can use the following formula:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And after replace we got:

$s = 0.1496$

And as we can ee we got a small value for the deviation <1 on this case.

8 0

2 years ago

In 2013, the world’s total output (real gdp) was roughly $73 trillion. what percentage of this total was produced:

KiRa [710]

The GDO these 3 countries respectively are $ 16.8 trillion, $ 9.2 trillion and $ 4,9 trillion. so the sum of the GDPGDP total = 16.8 + 9.2 + 4.9= 30.9
hence the percentage of the total output of the 3 largest economies is as follows:percentage = ( total gdp / total output of the world ) x 100
percentage = ( 30.9 / 73 ) x 100percentage = 42.33 %

3 0

3 years ago

What is the probability of flipping a coin 10 times and getting heads 4 times?

svet-max [94.6K]

I think it’s D sorry if I’m wrong

7 0

2 years ago

Read 2 more answers