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3 years ago

Cual es el complemento de 32 grados? :c

Mathematics

2 answers:

kiruha [24]3 years ago

3 0

Answer:

El complemento de 32 grados es 58 grados.

forsale [732]3 years ago

3 0

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Suppose that you were not given the sample mean and sample standard deviation and instead you were given a list of data for the

Troyanec [42]

Answer:

So, the sample mean is 31.3.

So, the sample standard deviation is 6.98.

Step-by-step explanation:

We have a list of data for the speeds (in miles per hour) of the 20 vehicles. So, N=20.

We calculate the sample mean :

$\mu=\frac{19 +19 +22 +24 +25 +27 +28+ 37 +35 +30+ 37+ 36+ 39+ 40+ 43+ 30+ 31+ 36+ 33+ 35}{20}\\\\\mu=\frac{626}{20}\\\\\mu=31.3$

So, the sample mean is 31.3.

We use the formula for a sample standard deviation:

$\sigma=\sqrt{\frac{1}{N-1}\sum_{i=1}^{N}(x_i-\mu)^2}$

Now, we calculate the sum

$\sum_{i=1}^{20}(x_i-31.3)^2=(19-31.3)^2+(19-31.3)^2+(22-31.3)^2+(24-31.3)^2+(25-31.3)^2+(27-31.3)^2+(28-31.3)^2+(37-31.3)^2+(35-31.3)^2+(30-31.3)^2+(37-31.3)^2+(36-31.3)^2+(39-31.3)^2+(40-31.3)^2+(43-31.3)^2+(30-31.3)^2+(31-31.3)^2+(36-31.3)^2+(33-31.3)^2+(35-31.3)^2\\\\\sum_{i=1}^{20}(x_i-31.3})^2=926.2\\$

Therefore, we get

$\sigma=\sqrt{\frac{1}{N-1}\sum_{i=1}^{N}(x_i-\mu)^2}\\\\\sigma=\sqrt{\frac{1}{19}\cdot926.2}\\\\\sigma=6.98$

So, the sample standard deviation is 6.98.

3 0

3 years ago

Sarah wants to print copies of her artwork. At the local print shop, it costs her $1 to make 5 copies and $5 to make 25 copies.

Nata [24]

Answer:

$20

Step-by-step explanation:

5 copies cost $1.

25 copies cost $5.

So you have to do 100/5=$20 for 100 copies.

6 0

3 years ago

the lengh of a triangle is 16 meters and the width is 3 meters. find the area. give your answer without units

Sonja [21]

Answer:

Step-by-step explanation:

1/2 bh

16x3/2=24

6 0

3 years ago

What’s the value of X ???!!!!

Alexus [3.1K]

Answer:

Step-by-step explanation:

So since triangle jkl and wyz are similar angles j and w must equal each other, angles k and y must equal each other, and angles l and z are equal. So to find x just set 4x-13 equal to 71

4x-13=71

add 13 to both sides to cancel the -13 from the left

4x=84

and divide both sides by 4 to cancel the 4 on the left

x=21

7 0

3 years ago

Walnuts, peanuts, and chocolate chips are mixed composed in a ratio of 7:2:5. What is the weight of the mixture if 2.5 lbs of ch

IrinaK [193]

Here is the answer. In order for us to know the weight of the mixture, we are going to solve for the weight of each first. Given that the weight of the chocolate chips is 2.5 and the ratio given is 7:2:5. First, let us solve for 2:5. So, ? : 2.5. The answer would be 1. So the weight of the peanuts is 1 pound. Now, we are going to solve for 7:2 given that the peanuts weigh 1 pound. 7:2 :: ? : 1 And the answer is 3.5. Therefore the weight of the walnuts is 3.5 pounds. So the weight of the mixture is 7 pounds. Hope this helps.

3 0

4 years ago

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