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Describe and correct the erTor:-2K 0+i K78+ 5 k+5 k+3 K"+8k+15 LCD = (k + 3)k+5) klkto) 4S(2+5) 2k k(k+3)+5(k+5)=-2k (k+G) ( K+3 Kiiartnk+iS K +3k+5k+25=-2k K+...

Question

Describe and correct the erTor:-2K 0+i K78+ 5 k+5 k+3 K"+8k+15 LCD = (k + 3)k+5) klkto) 4S(2+5) 2k k(k+3)+5(k+5)=-2k (k+G) ( K+3 Kiiartnk+iS K +3k+5k+25=-2k K+8k+25=-2k 8k+25 4 1 € k+0k+ 25=0 Thtay ( BTTKrs) (k+5) =0 FBv_+ 25 = F K1 ex +152-27 veli, VIT V X + 16= Ludcd (x+5 ) c hto L - 1 -5 L Y -2x-2 x+4_5 0-5 2x-9 G+S_W) 2X- X-5 (x-S)x+5) 2.-9 X 9- 2*7~ * 42 - (> +G (Y+S)1 71 103 + (+-9 T 7 Y ~ 6 +8x 2 2 -51 5

Describe and correct the erTor: -2K 0+i K78+ 5 k+5 k+3 K"+8k+15 LCD = (k + 3)k+5) klkto) 4S(2+5) 2k k(k+3)+5(k+5)=-2k (k+G) ( K+3 Kiiartnk+iS K +3k+5k+25=-2k K+8k+25=-2k 8k+25 4 1 € k+0k+ 25=0 Thtay ( BTTKrs) (k+5) =0 FBv_+ 25 = F K1 ex +152-27 veli, VIT V X + 16= Ludcd (x+5 ) c hto L - 1 -5 L Y - 2x-2 x+4_5 0-5 2x-9 G+S_W) 2X- X-5 (x-S)x+5) 2.-9 X 9- 2*7 ~ * 42 - (> +G (Y+S) 1 7 1 10 3 + (+-9 T 7 Y ~ 6 + 8 x 2 2 -5 1 5



Answers

Perform the indicated operations, where possible.
$$\left[\begin{array}{r}{4 k-8 y} \\ {6 z-3 x} \\ {2 k+5 a} \\ {-4 m+2 n}\end{array}\right]-\left[\begin{array}{c}{5 k+6 y} \\ {2 z+5 x} \\ {4 k+6 a} \\ {4 m-2 n}\end{array}\right]$$

Okay, so it's subject these two matrices. So let's see for first entry that's went before K when this eight y And if you have minus five K and minus six white, then we have 16 minus three X minus two z and N minus five X to UK. Close five. Aim and in minus four K on minus six A. And then we have one. It's for em close to, and one is for plus to end. Now let's combine my terms. So this is going to give us, um, we have four K minus five case of its A minus K and when it's eight, my six. So it's a minus 14. Why? And then we have six minus two. So that's a foreign Z and in minus feet, X tu minus four. That's a minus two K and then minus A. And lastly, we have a minus four. When its force, if it's one, is it, um plus, if war and

Here we are given with two mattresses being edited and equal to work hard metrics. So let's first hear these tumor traces to Adama. Traces, we added, were the corresponding elements of to my traces. So we have a place to here and three a year. So a plus two plus three years, first or second element is one plus. Does it first through third elements are five plus five them. Then second row force elements are eight K and okay, so eight shapeless bouquet, then second rule second elements are zero and five, so zero plus five second or third elements are three and six. So three plus six equals two. We are given with Ben and negative 14 80 then fight night. Now the final addition off these metrics can be given us A plus. Three is for a so four plus two. This becomes for Boozer plus one. This becomes 10 times M. This becomes 10-K This one becomes 53 plus six is nine equals stool then and then Negative 14 and five, 80 and nine. Hence we can observe that the two mattresses are being given equal. First, let's observed other dimensions off the metrics. This dimension is to grow. Three dimension for these metrics is also too closely. Therefore, the Senate races can be equal if, and only if their corresponding elements are equal. So we get four. A plus two equals two pen, which gives us four a equals to eight. Which gives us a a question. Next we have does it plus one question negative. 14. So we have to Third plus one equals two negative 14 which gives us boozer equals toe negative 15. Which gives us is there equals toe negative 15 divided by two. Next to be here, n m equals 2 80 So we have 10 m equals toe 80 rich users. M equals to eight. Next we help. 10 gig was suited. So 10-K was to 10 which use those. Okay, it was 21 Therefore, that is ever answer

This son, it would take five was a contractor sequel to five times one plus two plus three plus four, which is you called five times the some of the 1st 4 numbers and taking the five inside. She called to the some of the 1st 4 multiples of five tens. The right answer is D.

We will know evaluate the arithmetic expressions. As a computer would normally do. We are given to arithmetic expression. The first one we have parenthesis opening L plus M. Parenthesis closing divided by N plus Q. Multiplied by T. They wouldn't bite fight. Remember that? When you have to evaluate the arithmetic expressions we have to follow this order of arithmetic operators route. So this is all the expressions are evaluated from left to right. In this order first the parenthesis. What are the expression that we have inside the parenthesis? That will be evaluated first. And then comes in the exponents operators then comes in the multiplication or division. Suppose if we have to equal operators. They are always uh executed from left to right. And finally we have this addition or subtraction operators. So let's go ahead and at least this rule uh to evaluate this expression since we have parenthesis. So this will be evaluated first. That will that is L. Plus M. Will be evaluated 1st. And then we have this division. Remember that. We also have multiplication and division. But when we scan it from left to right. We held this prostitution which is divided by L. So basically this will be divided by N. And then We have this Q. multiplied by T divided by five. So basically we have this addition and cue will be multiplied with the. So which means this will be Q. T. And in the next step this will be divided by fight. So this will be debated by fight. So finally these two will get at it. So therefore this is the expression this is how the expression will be evaluated by the computer. Now let's apply the order of operators rule for this again. Expression we have this uh expression 80 plus 30 minus 27 star full minus 25 hour parenthesis. Five star five. So as you can see that we have this parenthesis. So it should be evaluated first. So we can write down as 80 Plus 30 -27. Start for minus 25. Bye. Five star. Five days five, multiplied by five is 25. So which is being evaluated first. The expression inside the parenthesis, which means in the next system, if you scan it from left to right, Once again we have this multiplication operator. So that will be our later. Next. So these two will remain same 80-plus 30 miners. 27 star four is uh wow Should be 108. Okay, It's 108 minus uh And the next we have this 25 divided by five. So this will be evaluated as one Cost 25 divided by five is 1. So then finally we have the mixture of uh addition and subtraction operators. Police that It will be evaluated from left to right. So 80 plus 30 will be evaluated first at 310 And -108 one. So this is basically 1, -008. So this will go three. So this too will be evaluated first at his three and minus we have one. So finally, I'm sorry, this this is too, in fact, So this will be to -1 is one. So therefore the output of this arithmetic operation is what.


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