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-Dominant- [34]
3 years ago
9

Who know how to do this​

Mathematics
1 answer:
nata0808 [166]3 years ago
4 0

Answer:

y = -1/6x-1 is perpendicular to y=6x-2 that intersects (6,-2)

Step-by-step explanation:

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Suppose these show number of hours each student in a class slept last night:
Olin [163]

⊂ Hey, rosedalphinis ⊃

Answer:

Mean: 6.9 hours; Median 7 hours

Step-by-step explanation:

<u><em>⇒ Given:</em></u>

<em>-------------------------------------------------------------------------------------------------------------</em>

<em>Suppose these show number of hours each student in a class slept last night:</em>

<em>8, 4, 8, 7, 7, 9, 6, 5, 10, 7, 6, 6</em>

<em>What is the mean of these numbers (rounded to the nearest tenth)?</em>

<em>What is the median?</em>

<em>Mean: 6.9 hours; Median 7 hours</em>

<em>Mean: 6.9 hours; Median 7.5 hours</em>

<em>Mean: 7 hours; Median 6.9 hours</em>

<em>Mean: 7.2 hours; Median 7 hours</em>

<em>-------------------------------------------------------------------------------------------------------------</em>

<u><em>⇒ Solution~:</em></u>

<em>-------------------------------------------------------------------------------------------------------------</em>

<em>Let's first define "Median".</em>

<em>You may be wondering "What is median/What is mean?".</em>

<em>When it asking for "Mean" It asking for the average.</em>

<em>When it asking for "Median" It asking for the middle number.</em>

<em>The formula for "Mean" is : M = sum of the terms/number of terms</em>

<em />

<em>According to the given we have;</em>

<em>8, 4, 8, 7, 7, 9, 6, 5, 10, 7, 6, 6</em>

<em />

<em>Let's first find the "Mean":</em>

<em>First, add all the number together.</em>

<em>8 + 4 + 8 + 7 + 7 + 9 + 6 + 5 + 10 + 7 + 6 + 6</em>

<em>12 + 8 + 7 + 7 + 9 + 6 + 5 + 10 + 7 + 6 + 6</em>

<em>20 + 7 + 7 + 9 + 6 + 5 + 10 + 7 + 6 + 6</em>

<em>27 + 7 + 9 + 6 + 5 + 10 + 7 + 6 + 6</em>

<em>34 + 9 + 6 + 5 + 10 + 7 + 6 + 6</em>

<em>43+ 6 + 5 + 10 + 7 + 6 + 6</em>

<em>49+ 5 + 10 + 7 + 6 + 6</em>

<em>54+ 10 + 7 + 6 + 6</em>

<em>64 + 7 + 6 + 6</em>

<em>71+ 6 + 6</em>

<em>77 + 6</em>

<em>= 83</em>

<em>Now let's count how many numbers of hours each student in a class slept.</em>

<em>8, 4, 8, 7, 7, 9, 6, 5, 10, 7, 6, 6 = 12</em>

<em>Now 83 divide by 12:</em>

<em>83/12 = 6.9166666666667 {Round}</em>

<em>6.9166666666667 = 6.9</em>

<em>Therefore, Mean = 6.9</em>

<em>-------------------------------------------------------------------------------------------------------------</em>

<em>Next, Let's find the "Median":</em>

<em>To find the Median, place the numbers in value order and find the middle.</em>

<em>⇒ 8, 4, 8, 7, 7, 9, 6, 5, 10, 7, 6, 6</em>

<em>⇒ 4, 5, 6, 6, 6, 7, 7, 7, 8, 8, 9, 10</em>

<em>Now we have them in order:</em>

<em>4, 5, 6, 6, 6, 7, 7, 7, 8, 8, 9, 10</em>

<em>Then, we find the middle number:</em>

<u><em>4,</em></u><em> 5, 6, 6, 6, 7, 7, 7, 8, 8, 9, </em><u><em>10</em></u>

<u><em>4, 5,</em></u><em> 6, 6, 6, 7, 7, 7, 8, 8, </em><u><em>9, 10</em></u>

<u><em>4, 5, 6,</em></u><em> 6, 6, 7, 7, 7, 8, </em><u><em>8, 9, 10</em></u>

<u><em>4, 5, 6, 6, </em></u><em>6, 7, 7, 7, </em><u><em>8, 8, 9, 10</em></u>

<u><em>4, 5, 6, 6, 6, </em></u><em>7, 7,</em><u><em> 7, 8, 8, 9, 10</em></u>

<em />

<em>Now You see that there two's 7 left.</em>

<em> If there is an even number of numbers add the two middles and divide by 2</em>

<em>Thus,</em>

<em>7 + 7 = 14</em>

<em>14/2 = 7</em>

<em>Therefore, Median = 7.</em>

<em>-------------------------------------------------------------------------------------------------------------</em>

<em>According to the solving above we can conclude that:</em>

<em>Mean: 6.9 hours; Median 7 hours</em>

<em>-------------------------------------------------------------------------------------------------------------</em>

<em />

<u><em>xcookiex12</em></u>

<em>9/4/2022</em>

<em>#Learnwithxcookiex12</em>

4 0
1 year ago
Read 2 more answers
A digital scale measures weight to the nearest 0.2 pound. Which
AnnyKZ [126]

Answer:

A

Step-by-step explanation:

This option contains a number that would appear on this scale.

4 0
3 years ago
269 - 100 = 169 points left lets goooooooo get em now
Butoxors [25]

Answer:

yessss pointssssssssssssssssssss

5 0
3 years ago
Read 2 more answers
Can someone help me with this.<br> 18 - + 8
eimsori [14]
Hello!

18-+8=10

Answer: 10
7 0
2 years ago
Read 2 more answers
The plane flew over a beacon which is 280 miles from bristol. write down the gmt times when the plane flew over the beacon.
eimsori [14]

According to graph, GMT time when the plane flew over the beacon was 9:24.

While looking closely at the graph on x axis , one will notice that each hour is divided into 5 parts and hence each part has 12 minutes. looking at y axis, one may find that each part on y axis resembles 20miles. Hence at 280 miles away from Bristol, The GMT time is 9:24.

<h3>What is a graph?</h3>
  • In mathematics, a graph is a visual representation or diagram that shows facts or values in an ordered way.
  • The relationships between two or more items are frequently represented by the points on a graph.
  • The study of graphs, which are mathematical constructions used to represent pairwise relationships between things, is known as graph theory in mathematics. Vertices (also known as nodes or points) make up a graph in this sense, which are connected by edges (also called links or lines).
  • Undirected graphs, in which edges connect two vertices symmetrically, are distinguished from directed graphs, in which edges connect two vertices asymmetrically. One of the main topics of study in discrete mathematics is graphs.

Know more about graph numerical

brainly.com/question/16608196

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7 0
2 years ago
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