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Math2415-408 Homework: 12.4 The Cross Product Score: 0 of 1 pt (15 completo) 12.4.46 Find Iha aren 0l Ihw trianal T wrh vetces 0i0,0,0 Pi2i ? 016,6.41 (uta M04 Fnar...

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Math2415-408 Homework: 12.4 The Cross Product Score: 0 of 1 pt (15 completo) 12.4.46 Find Iha aren 0l Ihw trianal T wrh vetces 0i0,0,0 Pi2i ? 016,6.41 (uta M04 Fnaroki nolt Ine Mna & [60 corfesponding pumacum(Type ord unsur, Wirg raCC $ FucdodEnter your anewor In tha DILS WU? box &d thon cllc CheckAnsuar parta atowt

Math2415-408 Homework: 12.4 The Cross Product Score: 0 of 1 pt (15 completo) 12.4.46 Find Iha aren 0l Ihw trianal T wrh vetces 0i0,0,0 Pi2i ? 016,6.41 (uta M04 Fnaroki nolt Ine Mna & [60 corfesponding pumacum (Type ord unsur, Wirg raCC $ Fucdod Enter your anewor In tha DILS WU? box &d thon cllc CheckAnsuar parta atowt



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Use the following information. You are buying 20 dollars worth of bird seed that consists of two types of seed. Thistle seed attracts finches and costs 2 dollars per pound. Dark oil sunflower seed attracts many kinds of song birds and costs 1.50 dollars per pound. Copy and complete the table. Label the points from the table on the graph created in Exercise 65 (TABLE CANNOT COPY)

In this video, we are going to look at how we can use a pollen a meal to calculate a student's average in heart course. So let's see. That's the average is represented by this Paulino meal. I'm going Teoh, Um, I mean the polynomial eight for average. So it is given by this Paulina Real 0.3. All right, so we see that we have four variables in this polynomial Q t, f and H. Now let's see. That's Que Hair represents the average mark that the students gets in a particular quiz. So quiz the average in the quiz T would represent the average on test, and F would represent the average on the final. The final exam and H would be the homework. So let's look at some values off results and see how we can use that to calculate the average. So let's say that, um, four quizzes were done and thes our values on the scores. That particular student that got so the queue I'll put in a different color. So these are the values for Q. So 60 85 72 91. But we realized that there are more than one, there's more than one value for the quiz. With only one body, we can put it. So what we're gonna do is find the average because secure presents average. So we're gonna find the average and to find the average we're gonna do is so all the values. So Adam Mullah values on the fire by the number off, um, turns number of values that we have. So the some would be 60 plus 85 plus 72 plus 91 that was would give us 300 and eat. And we're going to divide by the number off scores that we have. So in all we are four schools 123 and four. So this is home. Calculate. The average toe average quiz score is 77. With me five, three or age my form, you get 77. Now let's look at the terrible T and we said t represents a test score the average test score. So again, let's see that small and one test was done. So that's a fairy test food. And let's put some values for on the scores that are obtained for the particulars to them for its 89 93 90 Again, we have more than one value and we need an average. So we're gonna do the same thing. It's the same mom procedure. We're gonna do it to calculate the average. So what we do is some of the terms. So we add 89% 93 plus 90 and that would give us to 72. And then we divide by the number off score on schools that we had. So you have 3123 So we defied to 72 by three, and that's would give us 19.7. So the average test score for this too late, it was 19.7. All right, so let's look up f. When we said F was a final exam, well, the final examines was just one exam, and let's see that the score was 84. No, we said it was only one example what needs to take an average? This is an absolute value, and this is what we're going to use in the pollen. All right, so let's look at a final won the homework, right? So that's the only one home. Work was done on the score. That's the particular students got for the homework with 80. Eat again. We do not need to take an average value because it's only one value that we have here. All right, so let's put all these values together. No, and find old. What's is the students average for this particular course. So we are going to use a Pollina meal, and we're going to substitute the values, all of variables that we would have just calculated. All right, so let's calculate that. So a no becomes 0.3. And no, we know what Q is. So we're going to substitute that body in hair. So he caught 77. So it's surprising. Three Tangs 77 that I want to coat it color coded. So to be easier to understand, to follow. Plus, we have 0.4 times T and calculating what t was. We said T was 19.7. Great. Now we have f the final tests. So this has been multiplied by Cira 0.2 and F was 84. And finally we have the whole mark score, which is multiplied by 0.1 and the whole box score wish upon this in Brad. The homework school was 88. So what will it still is? You would multiply these values hair. So we will have syrup on three times 70 to 77 plus, um, 0.4 times 90.7 zero. Plus, there are going to times 84 plus syrup 840.1 times Etete. And when we dough, that's we would get so far you a be equal to 84 points 98 So this would give us the students average for this particular course. So this is how we would use Paulino mellitus, find out on different things. It may not always be on average value on on average, score for a student, maybe anything, but this is the concept that you will follow.

So we have some information on teachers score for Illinois certification. Uh, we know there. We know their score in three of the four categories. We are missing a score in the fourth, but we know on average Well, in order to find an average, by definition, we add up all of our possibilities for all of our scores. And then we divide by how maney scores we had, and that has to equal your average. That's what the formula tells us. So since I know this much and I only have one unknown, I can use this to go ahead and solve for X. So I need to get rid of this dividing by four, which is means I'm going to multiply both sides by four. And at the same time, I'm going to go ahead and combine my numbers in my numerator right here. So if I multiply both sides by four, that gives me 3 44 here and here I have X plus. Let's see 82 plus 90 is 1 72 and 1 72 plus 78 is 2 50 Now that should be a plus sign. Let's fix that X plus 2 50 equals 3 44 And now to get the X alone, I'm gonna go ahead and subtract 2 50 It's 2 50 and that's going to give me an X equal to Let's do 3 44 minus 2 50 That's going to give me an X equal to 94 that's her score on the program development.

Um, here we're being asked to calculate the identity scores for two sequences. So let me write them out. It will take me a moment. So a yes and ah. Ah, be okay. A G Okay. All right. So and then the second sequence is a key. De Why, Um, that's an l. Use me. Me then the same for you know, a sense like that. And so all we do is go through, count up the number that are identical. And even though they had lower, when does it look like an Ellison l and then the last four? All right, so we have 123456 So we have six identities, and then you went by each of those by 10. There aren't any gaps. We don't worry about that. And so the dandy score is 60 here now, or after them to take the second sequence and reorder itch and then redo the whole exercise. If you really want to be fancy pants, you can go through and use, like a random number generator. Ah, to come up with your new random sequence. But I don't think that's necessary. Although I did actually do that. So let me ran out the first sequence again. You can Google random number generator if you want to use that. And so here is my reordered sequence. E de. Okay. A ah e. Okay. Why? Um, that one's a that one isn't e. All right. So go through and find the ones with identities. And then my reordered sequence there, just two of them again. There are no gaps. Months by each of the identities by 10. And you get 20. So there we go.

Alright. In this question, we are given the equation a equals 0.3 Q worse, 0.4 T plus zero point two f plus 0.1 h. So we have each of these variables Q, T, ath and H. These are represent part of students class score. And so how they do this is you, um they ask us to take the average of each of these sections Q, T, f and H. Um, and then we complain, goes into this, um equation to find their grade. So, um, one nice thing is that all of these ah tests, they're already organized in terms of percent. Um, and so our final final answer will be a percent Great. So first we have a mark. You and we are given, Um, what we want to do is find the average, and so we're gonna add all these these scores up and then divide by the number of them. And so we have, um we have a score of 95 plus a score of 99 plus a score 72 plus a score of 79. And since we have four of those were gonna divide it by four. Now, um, we talked this. Okay. Calculator 95 plus 99 US 72 US 79. That gives us 3 45 So we have 345 divided by four. His 86.25 So this is 86 0.25 So that gives us our cue. Um, the next thing it asked for is T and so t we do a similar thing. We have a 68 0 That was a rough six. 68 plus 76 plus 92. Since we have three of those were gonna divide by three. So here we will do 60 a us 76 close, maybe two is 236 in 236. Divided by three is 78 and 2/3. Um, in other words, we can't We can't really simplify this, so we will. We'll just leave that infraction form to be safe. Um, so oldest covetous 200 and 36 over three and then the final score in the homework score just have one value, and so we don't actually need to calculate an average because an average of one value is just the value itself. Um Mm. And so to do each of these, we just plug plug our answers in here. Um, so we have that the class average is equal to 0.3, sometimes que, which was 86 0.25 aan den plus point for tea. So went for and r T was to 36 but by three. And then our plus 0.2 times the final, which was in 91 and worse, zero 0.1 times the homework, which was 86. Eso calculating this. We have 0.3 times 86 0.25 um, which is 25.875 So we have a 25 point a 75 plus and then this will be some deaths. More so the to 36/3 times by point for is 31 point or there are six is repeated. And then we have 0.2 times by 91 which well, give us two times 91 18.2 plus 18 0.2, then 0.1 times by 86 which is plus 8.1. Now, when we add all these together, we will get so 25 point A, it's seven. I've waas 31 0.4 and then I'm just gonna put up on just six. Is here us 10.2, uh, 8.1. And again, I'm just typing this in the calculator, and it's giving me 83 0.64 one. So 83.64 one and then a bunch of six is repeated. And so, depending on on how they I want you to round it, some May cult and this is again a percent. So some may call this an 84% or they might want you to round it. The tent so would be 80 83.6 or or things like that. But the the complete percent is, Is this This gives you all your parts as long as you put that line over the six to say that six is going to go on forever. It's just 66666


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