5

Comoljiu DertIhiouch & ii to folkn: (5,y) p84s 0l deia pomnts 5), (8,7),(5,6} (7,8), ond (8 91Piuoaie saiter pol Qi Ihese deie pintsCompuia0.888 (Round Iiua dao...

Question

Comoljiu DertIhiouch & ii to folkn: (5,y) p84s 0l deia pomnts 5), (8,7),(5,6} (7,8), ond (8 91Piuoaie saiter pol Qi Ihese deie pintsCompuia0.888 (Round Iiua daoinalpacusnueced |Comquie DoRoungUnien decime diacesneeded )Enler your answer Ihe answer box and Ihen click Check Answe

comoljiu Dert Ihiouch & ii to folkn: (5,y) p84s 0l deia pomnts 5), (8,7),(5,6} (7,8), ond (8 91 Piuoaie saiter pol Qi Ihese deie pints Compuia 0.888 (Round Iiua daoinalpacus nueced | Comquie Do Roung Unien decime diaces needed ) Enler your answer Ihe answer box and Ihen click Check Answe



Answers

In Exercises $79-82,$ simplify each expression. Divide the sum of $(y+5)^{2}$ and $(y+5)(y-5)$ by $2 y$

Here is asking us to rewrite this in form A plus the eye and they provide some answer choices we're gonna do here is we're going to just multiply this out. So eight minus five I square it is just multiplying. Eight minus five I times itself. So first, we have eight times eight, which is 64. Outer is an eight times a minus five. I gives me a minus 40. I, the owner is going to be the same. And then a negative five I times a negative five. I gives me a positive 25. I squared. Well, we know that I squared is negative one. So this becomes a minus 25. And I'll just put this over here by the 64 because I can combine these whole numbers. When I subtract here, I get 93 so I get a 39 and then these two can combine a minus 40 and another minus 40 is a minus 80 I and this is answer choice G

Today we are finding equivalent expressions when given the least common denominator, okay, it's going to be two parts because we're given to fractions. So in this case we have eight. Why squared plus 12? Y. 35 as our first fraction. And the common denominator we are given is y plus seven. Y about six or y plus five. Sorry. And why minus six? Now the first step is we want to factor this denominator, it's going to be factored into Why? Why? Plus seven and plus five. Now we take whatever is missing from our least common denominator and multiply it to both top and bottom of this fraction. In this case we are missing the Y -6. So we multiply the top and bottom by Y -6. We're going to distribute the aid into both of these which gives us eight y minus 48. Yeah. Funny ain't just blanket on my times tables they're a little bit and That's going to be over or at least common denominator of Wipo seven five plus five And why I -6 now is added at the bottom as well. So that's gonna be your first answer. Your first evaluated equivalent expression. Now your second one is given as three Y. Over. Why I swear plus why minus 42. So again we want to factor the denominator, We're gonna get three Y over. Why? Why? And it's going to be plus seven and minus six. Now we do the same thing, We multiply by whatever binomial is missing. That is in the least common denominator in this case it is The Y-plus five Mentality. For some reason the wife was five over here so we multiply the top and bottom by y plus five, Distribute The three Y out. Oh yeah, three wise squared plus 15. Why? Over our common denominator of Y plus seven, Why AM -6. And now Y Plus five as well. And that's going to be the second evaluated equivalent expression. So those are your two answers right here. Yeah.

Okay. The idea behind this problem is to use the idea of an inverse matrix to solve a system of linear equations. The process involves this principle that Matrix X equals the inverse of matrix A times matrix speak now, Matrix X stands for the variable matrix matrix A. Is the coefficient matrix from your system and Matrix B is the constant matrix from your system. So basically this principle is saying mr verbal matrix will equal the inverse of the coefficient matrix times the constant matrix. So too big tasks in this problem are to find the inverse of the coefficient matrix and then to multiply that in verse times of constant magics. So the problem that we are working with, Yeah, yes. I. System that has three equations, three variables. So the terrible matrix is going to be X, Y and Z. Oh, the coefficient matrix in this problem is 25 61 -12. And that's the X, YZ coefficients from the first equation. Yeah. And then 18 negative 12 positive seven. Again, coefficients of x Y Z from the second equation. And then three, four negative woman Coefficients of X, YZ from the 30 question. So the inverse of that is going to be multiplied times the constant matrix, Which is a 10 negative nine, 12. So again, the big task on this is to get the inverse of the coefficient matrix. And then the next big task is multiply that inverse times the constant matrix. But in a previous problem you were to find the inverse matrix. Yeah, Around it to two decimal places. So that inverse matrix was and took to two decimal places zero T. Is there a zero T 0.40 More? And then 0.06. 0.0 T -0.57. And then 0.16 Yeah. 0.12. And there were 2.7. Look, okay, that was the first major expanding the previous problem for this uh, coefficient matrix. Well multiply that times the constant metrics. Okay, Okay. Someone moving space. I can do some computations. Yes. So we will take the first row times are constantly took. So that's going to be a negative 0.02. The 0.02 and 0.40 more. We do the multiplication will have a negative point to A- -18. and at four 92 And that evaluates it works out or sympathize to four 54. Mhm. Okay. Race this. We can do the second row. I want to Okay then. With the second row of the universe metrics times the constant matrix. Again. These numbers down so can keep track of what needs to be multi broad. Okay, that works out. 2.6 negative 0.18 In a negative 6.84 combine those and we get a negative 6.42. Okay, race those and do the last one. Okay. Yeah. Question mm. Money. Okay. The last round Of the Inverse Matrix, that's going to be a single .16. The remote papa 0.12 and a negative 2.5 kids modification is gonna get us at 1.6 negative 1. 8 And a negative 24.6 Combine those and we will end up with a negative 24.08. So we have solved the system to two decimal places. We have our X why and I see so we can ride in order triple. Again these are rounded to two decimal places. We've got our X. Why and R C. Yeah. Okay. And that solves that system using inverse matrix.

In this problem, just look at it carefully. BB I too, will react in pageants of BSE here, too. ECU was to give compound Are we change which aid 80 cl here, which it A d c L. Here? So this is white PPT. They said white PPT. Therefore, according to the option option, age, correct and said for this problem, A d c l a will be the white PPT in this problem.


Similar Solved Questions

5 answers
30.0 cm36.0Use the figure with two lenses for questions #I0 and #I 1 withvalues fi +20.0cm and f=-25.0 cm:10. What is the location of the final image?ObjectWhat is the magnification of the final image relative t0 the original objeet?
30.0 cm 36.0 Use the figure with two lenses for questions #I0 and #I 1 withvalues fi +20.0cm and f=-25.0 cm: 10. What is the location of the final image? Object What is the magnification of the final image relative t0 the original objeet?...
5 answers
Saccer | 4 4 YanyVarqe sotcer fled 145 melenmetetNdedimcnsicnsfeet? (Assume [hat Mater equak ? 786 Icrt lenglnmiolnKaal NettHcauritonniUncnienqumwicth376 45
Saccer | 4 4 Yany Varqe sotcer fled 145 melen metetNde dimcnsicns feet? (Assume [hat Mater equak ? 786 Icrt lengln mioln Kaal Nett Hcauritonni Uncni enqum wicth 376 45...
5 answers
Calculate the flux of the field F across the closed plane curve € 6) F = xi + yj; the curve € is the circle (X - 1)2 + (y - 2)2 = 81
Calculate the flux of the field F across the closed plane curve € 6) F = xi + yj; the curve € is the circle (X - 1)2 + (y - 2)2 = 81...
5 answers
Chirality from bond-line structure: identify chiral centers and then determine their R/S configuration of each chiral center. Is this molecule chiral?Questions to think about: How would you draw the enantiomer of this molecule? How about diastereomer? b. How many stereoisomers are there for this molecule? Are all the stereoisomers chiral themselves?
Chirality from bond-line structure: identify chiral centers and then determine their R/S configuration of each chiral center. Is this molecule chiral? Questions to think about: How would you draw the enantiomer of this molecule? How about diastereomer? b. How many stereoisomers are there for this mo...
5 answers
15.Solve the system of linear equations using the Augmented Matrix technique from Sec: 4.2 aka Gauss Jordan Elimination ). Show supporting algebra. You may use your calculator to check your work. 10 pts_X + 3x2 =-14 2x, +512 =-22
15. Solve the system of linear equations using the Augmented Matrix technique from Sec: 4.2 aka Gauss Jordan Elimination ). Show supporting algebra. You may use your calculator to check your work. 10 pts_ X + 3x2 =-14 2x, +512 =-22...
5 answers
(d) Find the mean for the entire population of these 24 playersRound your answer to two decimal places.Mean
(d) Find the mean for the entire population of these 24 players Round your answer to two decimal places. Mean...
5 answers
Question 11 (5 points)Enter a number rounded to one decimal if necessary:You corrected 15 tests and your substitute helped you finish for your class of 29 students. The mean for the tests You corrected was 81.3 and the mean for the entire class turned out to be 84.6Your substitute calculated that the mean for the tests she corrected was
Question 11 (5 points) Enter a number rounded to one decimal if necessary: You corrected 15 tests and your substitute helped you finish for your class of 29 students. The mean for the tests You corrected was 81.3 and the mean for the entire class turned out to be 84.6 Your substitute calculated that...
5 answers
Find the crlcal values 4=4/2 ard 174/2 for 9 90% confidence levelsampi size ol n = 20.1-0/2 (Raund Ia threo declinal placos 03 neuded; ) 4/2 0 (Raund t0 thma decimal placos a5 neadod )
Find the crlcal values 4=4/2 ard 174/2 for 9 90% confidence level sampi size ol n = 20. 1-0/2 (Raund Ia threo declinal placos 03 neuded; ) 4/2 0 (Raund t0 thma decimal placos a5 neadod )...
5 answers
Using the data in the table calculate the rate constant of this reactionTrial [A] (M) 0.320 0.320[B] (M) 0.210 0.588 0.210Rate (Mls 0.0156 0.122 0.0203A+B _C+D0416Units#TOOLS X10M-%
Using the data in the table calculate the rate constant of this reaction Trial [A] (M) 0.320 0.320 [B] (M) 0.210 0.588 0.210 Rate (Mls 0.0156 0.122 0.0203 A+B _C+D 0416 Units #TOOLS X10 M-%...
5 answers
Determine the order of the given differential equation; also state whether the equation is linear or nonlinear.$$ rac{d y}{d t}+t y^{2}=0$$
Determine the order of the given differential equation; also state whether the equation is linear or nonlinear. $$ \frac{d y}{d t}+t y^{2}=0 $$...
3 answers
Which 0f the following mixtures would result in & bullered solullion when 10 L of each of the Jo solulions Yare mixcd Select onea,0.1MHCI and 0.3MHIb. 0.1MHCI and 0.2 M NaohC.0.1MHCI and 0.3MKCId,0.1MHCI and 0.2M NaCaH;Oze: None of the optionsNot yel answarcd Markede ut of 1.00The molar solubility of Mg(oHl: {Mgiohh= 89 , 10 Kao Select oneux10" moll 6. 2 * 10 moll 13 * 10 moll 25* 10' moll
Which 0f the following mixtures would result in & bullered solullion when 10 L of each of the Jo solulions Yare mixcd Select one a,0.1MHCI and 0.3MHI b. 0.1MHCI and 0.2 M Naoh C.0.1MHCI and 0.3MKCI d,0.1MHCI and 0.2M NaCaH;Oz e: None of the options Not yel answarcd Markede ut of 1.00 The molar s...
5 answers
Y = 2Vz + 22dy Find dx Given y = 2vz + Z2 V = eXZ = COSX
y = 2Vz + 22 dy Find dx Given y = 2vz + Z2 V = eX Z = COSX...
5 answers
How much heat (in kJ) will be absorbed by a 71.5 g piece ofaluminum (specific heat = 0.930 J/g・°C) as it changes temperaturefrom 23.0°C to 67.0°C?
How much heat (in kJ) will be absorbed by a 71.5 g piece of aluminum (specific heat = 0.930 J/g・°C) as it changes temperature from 23.0°C to 67.0°C?...
5 answers
You need to show all work. Correct answers without correct work will receive no credit.Diagonalize the matrixShow YOur work and give the final answer for the P and DA =~2
You need to show all work. Correct answers without correct work will receive no credit. Diagonalize the matrix Show YOur work and give the final answer for the P and D A = ~2...
5 answers
Q8 Will a precipitate of PbClz form when 2.0 g of solid Pb(NO3) is added to 0.5 L of 0.020 M NaCl? Assume that volume change is negligible (MWPb(NO3)2 = 331.21 g/mol) (Ksp (PbCI2) 1.60 x 10-5 ) (10 _ P) Pb(NO3)z (aq _ Pb+2 (aq + 2 NOs (qNaCl (aq _ Nat (aq + Cl (44) Pb+2 (aq + 2 Cl (aq PbClz (s)
Q8 Will a precipitate of PbClz form when 2.0 g of solid Pb(NO3) is added to 0.5 L of 0.020 M NaCl? Assume that volume change is negligible (MWPb(NO3)2 = 331.21 g/mol) (Ksp (PbCI2) 1.60 x 10-5 ) (10 _ P) Pb(NO3)z (aq _ Pb+2 (aq + 2 NOs (q NaCl (aq _ Nat (aq + Cl (44) Pb+2 (aq + 2 Cl (aq PbClz (s)...
5 answers
Question 15Which structure is most acidic? CH3NH2 b.CH3OH CH3OHzd-CH3NH3
Question 15 Which structure is most acidic? CH3NH2 b.CH3OH CH3OHz d-CH3NH3...
5 answers
Find a equaticn of the Iine described. Through (9, 8), parallelito the y-axisOA: iX=9 0 8 y=9 0Ci X= -8 0 D. # E8xCllck I0 select ycur ansker;
Find a equaticn of the Iine described. Through (9, 8), parallelito the y-axis OA: iX=9 0 8 y=9 0Ci X= -8 0 D. # E8x Cllck I0 select ycur ansker;...

-- 0.021253--