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Andrews [41]
3 years ago
10

The factory produces sewing machine parts. During one week they produced 345,298,452 and 388 parts per day. What was the average

number of parts produced each day
Mathematics
1 answer:
Alexxx [7]3 years ago
7 0
370.75 ~ 371

Example:
To find the average for 10,18 and 13.

We just have add the following numbers and divided them by how many numbers you added.

Solution:
10 + 18 + 13 = 41
41 / 3 = 13.67 or 14
Then the average score is 14.

Measures of central tendency are a statistical method in which you measure and gather the middlemost value of the set of parameters.
1. Median
2. Mode
<span>3. Mean, this is considered to be the average in lay man's term.<span>
</span></span>
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Suppose a railroad rail is 6 kilometers and it expands on a hot day by 20 centimeters in length. Approximately how many meters w
sukhopar [10]

Answer:

Step-by-step explanation:

Given that the railroad rail is 6 kilometers before expansion.

When the railroad expands, it makes an isosceles triangle at the center of the rail.

The base of the triangle is 6 kilometers while each leg of the triangle is given by (6 + 10/100,000) / 2 = 6.0001 / 2 = 3.00005 kilometers.

[recall that 100,000 centimeters gives 1 kilometers, thus 10 centimetres gives 10/100,000 kilometers]

Taking one half of the isoceles triangle, we have a right triangle with one of the leg as 6 / 2 = 3 kilometers and the hypothenus = 3.00005 kilometers.

Thus, using the Pythagoras theorem, we find the other leg (height) of the right triangle as follows.

Let the other leg of the right triangle be h, then

Thus, the center of the rail will rise 0.01732058 kilometers above the ground.

But, there are 1,000 meters in 1 kilometers, therefore, the center of the rail will rise 0.01732058 x 1,000 = 17.32 meters above the ground.

5 0
4 years ago
Pls help no need for long explanations just a summary ​
mr Goodwill [35]

Answer:

<em>FG - it is midline. FG = 5.</em>

Explanation:

<em>A midline in a triangle is a line segment connecting the midpoints of two sides.</em>

<em>A midline is half the length of the side to which it is parallel.</em>

<em />\dfrac{CE}{FG} =2\\\\ \dfrac{9x-26}{7x-23} =2\\\\9x-26=2(7x-23)\\9x-26=14x-46\\14x-9x=46-26\\5x=20\\x=4<em />

<em>CE = 9 · 4 - 26 = 10</em>

<em>FG = 10/2 = 5</em>

8 0
3 years ago
Prove the segments joining the midpoint of consecutive sides of an isosceles trapezoid form a rhombus. use the distance formula
riadik2000 [5.3K]
In order to prove this, we have to put the trapezoid to the coordinate system. In the attached photo you can see how it has to be put. The coordinates for the vertices of trapezoid written according to the midpoint principle. By using the distance between two points formula, we can find the coordinates for the vertices of the rhombus. 
D_{x} = \frac{-2b-2a}{2}=-b-a and D_{y}= \frac{2c+0}{2}=c. The coordinates of D is (-b-a, c)
E_{x} = \frac{-2b+2b}{2}=0 and E_{y}= \frac{2c+2c}{2}=2c. The coordinates of E is (0,2c)
Since we have the reflection in this graph, the coordinates of F is (b+a, c)
And the coordinates of G is (0,0).

Using the distance formula, we can find that 
DE= \sqrt{(-b-a)^{2}+ c^{2}}=\sqrt{(b+a)^{2} + c^{2}}
EF= \sqrt{(b+a)^{2} + c^{2} }
GF= \sqrt{(b+a )^{2} + c^{2} }
DG= \sqrt{(b+a)^{2}+ c^{2} 

Since all the sides are equal this completes our proof. Additionally, we can find the distances of EG and DF in order to show that the diagonals of this rhombus are not equal. So that it is not a square, but rhombus. 

6 0
3 years ago
Read 2 more answers
Angles L and K are alternate interior angles. The measure of L is 50°. What is mK? A. mK = 40° B. mK = 50° C. mK = 130° D. mK =
USPshnik [31]

Answer:

i think its either a or b

Step-by-step explanation:

6 0
3 years ago
A bag contains eight yellow marbles, nine green marbles, three purple marbles, and five red marbles. Three marbles are randomly
Gnoma [55]

Answer:  Last Option is correct.

Step-by-step explanation:

Since we have given that

Number of yellow marbles = 8

Number of green marbles = 9

Number of purple marbles = 3

Number of red marbles = 5

So,

Probability that there is atmost one purple marble is given by

P(X=0)+P(X=1)\\\\=\frac{^{22}C_3}{^25C_3}+\frac{^3C_1\times ^{22}C_2}{^25C_3}\\\\=\frac{22\times 21\times 20}{25\times 24\times 23}+3\times \frac{22\times 21}{25\times 24\times 23}\\\\=0.971

Hence, Last Option is correct.

3 0
3 years ago
Read 2 more answers
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