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Zina [86]
3 years ago
14

How to find surface area of trapezoid. ​

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
5 0

Answer: To find the area of a trapezoid, start by adding together the length of the bases, which are the 2 sides of the trapezoid that are parallel with each other. Then, multiply that number by the height of the trapezoid. Finish by dividing the product by 2 to find the area. Or check this image it can help u

Step-by-step explanation:

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For the data set 6, 5, 10, 11, 13, the mean, x, is 9. What is the standard deviation?
Salsk061 [2.6K]

Answer:

your answer will be 3.4

Step-by-step explanation:

n=number of terms

{6,5,10,11,13}=5

also ∑(x-x)^2=46

S=\sqrt{\frac{1}{5-1} *46} =

\sqrt{\frac{46}{4} }=\sqrt{11.5}  \\\\S=3.4

hope it helps

have a great day!!

3 0
3 years ago
Read 2 more answers
What does 9x+9+3(x+4)+5 equal in simplified form
dlinn [17]

Answer:

12x+26

Step-by-step explanation:

Just expand braket,then add

3 0
3 years ago
What is the irrational number in This set: 12.89, square root of 12 and 12/144 ?
kifflom [539]
Good night, 

<span>Irrational numbers are those that can't be expressed as a fraction:

12.89 can be expressed as: </span>\frac{1289}{100}

\frac{12}{144}= \frac{1}{12}

<span>The above numbers can be expressed as a fraction, then the logical answer is: </span>\sqrt{12}

But we will check the answer: 

\sqrt{12}= \sqrt{2^{2}*3 }  =2* \sqrt{3} =3.4641016...

As you can see we can't express that number as a fraction, so that is te correct answer.

6 0
4 years ago
Expresss 8 2/7 as a %
Darya [45]

828.57%

Step-by-step explanation:

8 0
3 years ago
There is a sale at Ross for 60% off all sweaters. Angela found one that she really likes and the original price is $24.99. What
Andreyy89
The answer is $14.99: 24.99x0.6=14.994~14.99
3 0
3 years ago
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